Home » Black Recessed Lighting » 5W 280LM SLT40 LED Downlight Small Hole Customizable Anti-glare Energy Saving Eye Protection Adjustable Beam Angle 15°/24°-Kosoom

5W 280LM SLT40 LED Downlight Small Hole Customizable Anti-glare Energy Saving Eye Protection Adjustable Beam Angle 15°/24°-Kosoom


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5 Years Warranty

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Product Technical Specifications – SLT40 Custom LED Spotlights

Product Code SLT40
Power (W) 5W
Lumen 280
Size 45*H51mm
PF >0.5
Voltage (V) 220-240V/100-277V
CRI 83/90/95/Thrive
Color Black/White/Customized
Beam Angle (°) 15°/24°
CCT (K) 2700/3000/3500/4000/5000K

Note: Each Product code can be customized, with options for CRI and Color.

Introduction to the KOSOOM Brand

As a seasoned professional in the realm of led light supply, KOSOOM stands as a beacon of innovation and excellence. With a portfolio that caters to a diverse range of lighting needs, KOSOOM has firmly established itself as a leader in the industry. In this article, we’ll delve into the dynamic world of KOSOOM’s Custom LED Spotlights series and uncover what sets them apart.

Exploring Custom LED Spotlights

Custom LED Spotlights are a game-changer in the field of lighting design. These versatile fixtures offer a myriad of possibilities across various environments and settings. Whether you’re illuminating a chic restaurant lighting, curating an art gallery lighting, enhancing the ambiance of a retail store, or optimizing visibility in a supermarket, Custom LED Spotlights provide tailored lighting solutions to meet every need.

Product Description and Features

Now, let’s zoom in on one of KOSOOM’s finest offerings – the SLT40 Custom LED Spotlight. This remarkable product boasts a range of features that set it apart from the competition. With a variable Color Temperature (CCT) ranging from 2700K to 5000K, an impressive Lumen output of 280, and a choice of beam angles at 15° and 24°, the SLT40 delivers precision lighting like no other. Furthermore, it offers a CRI (Color Rendering Index) of 83, 90, 95, or Thrive, ensuring superior color reproduction.

Additionally, its dimensions of 45mm in diameter and 51mm in height make it a compact and versatile lighting solution. But what truly distinguishes the SLT40 is its customizability – from color temperature to beam angle, and even the option for black or white casing, KOSOOM caters to your unique preferences.

Why Choose KOSOOM’s SLT40 Custom LED Spotlights?

Selecting the right lighting solution is a decision not to be taken lightly, and KOSOOM’s SLT40 Custom LED Spotlights make the choice crystal clear. The reasons for opting for these exceptional fixtures are abundant:

  • Durability: The SLT40 is engineered to withstand the test of time. Its robust construction ensures longevity, making it a cost-effective investment in the long run.
  • Safety: Safety is paramount in any lighting application. KOSOOM understands this, and the SLT40 adheres to the highest safety standards, offering peace of mind.
  • High Efficiency: Efficiency is at the heart of KOSOOM’s design philosophy. The SLT40’s high-efficiency lighting ensures you get the most out of every watt, reducing energy costs while maintaining exceptional performance.
  • Versatility: Whether you’re looking for focused illumination or broad coverage, the SLT40 delivers. Its customizable beam angles cater to diverse lighting needs, adapting seamlessly to different spaces.
  • Ease of Installation: Installing the SLT40 is a breeze. Its user-friendly design simplifies the installation process, reducing downtime and labor costs.
  • Brightness: Brightness matters, and the SLT40 shines in this department. With a lumen output of 280, it provides ample light to accentuate your space.

While we’ve shed light on the SLT40, KOSOOM offers a wide range of lighting solutions, including led light tape. These versatile products complement the Custom LED Spotlights and offer even more possibilities for your lighting projects.

Stay with us as we uncover more about the advantages of the SLT40 and explore KOSOOM’s other product lines, such as LED Linear Lighting.

Advantages of the SLT40 Custom LED Spotlights

The SLT40 Custom LED Spotlights bring a host of advantages to the table. Let’s dive into what sets them apart:

  • High-Powered LED Chips: The heart of the SLT40 lies in its high-powered LED chips. These advanced components deliver exceptional brightness and efficiency, ensuring your space is brilliantly illuminated.
  • Uniform Lighting: Achieving uniform lighting across your environment is crucial for aesthetics and functionality. The SLT40 excels in providing even, consistent light distribution, enhancing the visual appeal of your setting.
  • Customization Options: Tailoring your lighting to suit your needs has never been easier. With customizable color temperature, beam angle, and casing colors, the SLT40 offers flexibility that few other fixtures can match.
  • Outstanding Color Rendering: The Color Rendering Index (CRI) is a measure of a light source’s ability to reproduce colors faithfully. The SLT40’s CRI options of 83, 90, 95, or Thrive ensure that colors appear vivid and true, making it ideal for applications where color accuracy matters.
  • Embedded Installation: The SLT40’s design allows for embedded installation, giving your space a clean and modern appearance while maintaining exceptional lighting quality.

In addition to the SLT40, KOSOOM’s product portfolio includes the remarkable linear light fixture series, which we’ll explore in detail later.

Warranty and Certifications

Quality and peace of mind are non-negotiable when it comes to lighting solutions. KOSOOM is committed to both.

  • Certifications: The SLT40 Custom LED Spotlights proudly hold CE and ROHS certifications, assuring you of their compliance with international standards for safety and environmental friendliness.
  • Warranty: KOSOOM stands behind its products with confidence. The SLT40 comes with an impressive 5-year warranty. This warranty period reflects our commitment to product longevity and customer satisfaction.

Installation Methods and Considerations

Getting your lighting fixtures in place should be a hassle-free experience. The SLT40 Custom LED Spotlights simplify the installation process. Here’s what you need to know:

  • Installation Steps: Installing the SLT40 is straightforward. Begin by securing the fixture in the desired location. Connect the necessary wiring according to the provided instructions. Once in place, adjust the beam angle to suit your lighting requirements. The fixture’s versatility allows it to adapt seamlessly to various settings.
  • Recommendations and Considerations: While installation is user-friendly, it’s essential to follow safety guidelines and adhere to local electrical codes. Ensure that the power source is switched off during installation and consult a qualified electrician if necessary. Additionally, consider the fixture’s beam angle and placement to achieve the desired lighting effect.

Maintenance and Care

Preserving the performance and longevity of your SLT40 Custom LED indoor spot lights is simple. Here are some guidelines for maintenance:

  • Cleaning: Regularly clean the fixtures with a soft, damp cloth to remove dust and dirt. Avoid abrasive or corrosive cleaning agents that could damage the casing or components.
  • Checking Connections: Periodically inspect wiring connections to ensure they remain secure. Loose connections can lead to performance issues.
  • Warranty Reminder: Don’t forget about the impressive 5-year warranty that comes with the SLT40. In the unlikely event of an issue, reach out to KOSOOM’s customer support to address any concerns promptly.

We’ve explored the essential aspects of the SLT40 Custom LED Spotlights, but there’s more to uncover. In the next section, we’ll conduct a cost-benefit analysis to showcase the excellent value these fixtures offer.

Cost-Benefit Analysis

In today’s competitive market, making cost-effective choices is paramount. The SLT40 Custom LED Spotlights stand out as a prime example of value for money:

  • Price Advantage: Despite their outstanding features and quality, SLT40 fixtures are competitively priced, making them accessible without compromising on performance.
  • Performance: When it comes to performance, the SLT40 shines brightly. Its high lumen output, customizability, and energy efficiency ensure it outperforms many alternatives in the same price range.
  • Longevity: The SLT40’s durability and the backing of a 5-year warranty ensure that you’re making an investment that will pay off over time.

In the final section, we’ll wrap up our exploration of KOSOOM’s brand and its SLT40 Custom LED spotlight bar, emphasizing the unique appeal and inviting readers to take action.

Conclusion and Call to Action

In closing, KOSOOM stands as a beacon of innovation and reliability in the realm of commercial lighting supply. With a product lineup designed to meet the diverse needs of various lighting projects, KOSOOM is the go-to choice for those who seek excellence.

The SLT40 Custom LED Spotlights, a jewel in KOSOOM’s crown, have been meticulously crafted to deliver unparalleled lighting solutions. From their customizable features to their impressive performance, these fixtures exemplify KOSOOM’s commitment to quality and customer satisfaction.

As a professional in the field, you understand the importance of selecting the right lighting solution. The SLT40 Custom LED Spotlights offer a compelling proposition: durability, safety, efficiency, versatility, and brightness – all packaged in a cost-effective solution.

Furthermore, KOSOOM’s commitment to customer satisfaction is underlined by the 5-year warranty, assuring you of the product’s longevity and reliability.

In a world where lighting can make or break the ambiance and functionality of a space, choosing KOSOOM’s SLT40 Custom LED Spotlights is not just a practical choice; it’s a statement of your commitment to quality and performance.

Don’t miss the opportunity to enhance your lighting projects with KOSOOM’s SLT40 Custom LED Spotlights. Join the ranks of satisfied customers who have experienced the brilliance of KOSOOM’s lighting solutions.

Now is the time to take action. Contact us today to discuss your lighting needs and explore the possibilities that KOSOOM can offer. Elevate your lighting projects to new heights of excellence with KOSOOM – your trusted partner in commercial lighting supply.

Thank you for entrusting us with your lighting needs. We look forward to illuminating your world with KOSOOM’s expertise and innovation.


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Kosoom is a renowned Italian brand specializing in commercial lighting. With 8 production facilities worldwide, we have established partnerships with clients from over 70 countries. Our headquarters is located at Via Talamoni, 6, 20861 Brugherio MB, Italy, and you can reach us at +39 3400054590. We take pride in offering a diverse range of high-quality commercial lighting products and solutions, including various LED fixtures, linear lights, pendant lights, track lights, downlights, spotlights, and more.Distinguished for our commitment to providing efficient and energy-saving lighting products and solutions, Kosoom employs advanced technology and top-notch products to deliver environmentally friendly lighting solutions. Additionally, we offer customization services to cater to the unique needs of our clients. We look forward to collaborating with you, providing professional and reliable lighting solutions for your specific requirements.

About Price

All our lighting products are priced inclusive of value-added tax, offering excellent value for money. Across various categories, we boast the lowest prices in Europe, truly making a striking impact! With a substantial inventory in our warehouse in Italy, we ensure swift delivery once you place an order on the Kosoom online store. Our prices are more favorable compared to Tecnomat. If you are a professional or a company, feel free to reach out to us to avail exclusive pricing.

Lead Time

All our orders are guaranteed to be dispatched within 24-48 hours. In the rare instance where unforeseen circumstances may cause a delay, rest assured that we will promptly inform you. For customized products, we seek mutual agreement on the delivery timeframe to ensure both parties are in sync with the tailored order's schedule.

About Returns

It's important to note that returns are not accepted for non-quality-related issues. However, in cases where there are quality concerns, we are open to exchanges or returns. All our products come with a warranty period of 3-5 years, ensuring a commitment to quality assurance.

About Invoice

Upon placing an order, we will generate an invoice that includes comprehensive details such as the order number, a detailed list of purchased products, quantities, prices, any applicable taxes or discounts, and the total amount paid. This invoice will be sent to the email address associated with your order. Should you have specific requests or require additional copies of the invoice, feel free to reach out to our customer support team, and they will be more than happy to assist you.

Product Warranty Time

With the exception of customized products, all our items come with a warranty of 3-5 years. We pledge to adhere to a "replace without repair" policy in the event of any quality issues, ensuring maximum protection of your rights. For information regarding the warranty period for customized products, please feel free to reach out to us for consultation.

About Logistics And Transportation

Our dispatch location is at Via Talamoni, 6, 20861 Brugherio MB, Italy. Shipments will be sent via BRT or other express services. For any special requests, feel free to get in touch with us, and typically, we process and dispatch orders within 24-48 hours.

How to view or purchase products of the same model with different parameters?

You have the option to explore and purchase products with varying specifications and accessories from the same series by referring to the table located beneath the product images on the current page.

What are the advantages of Kosoom lamps compared to other brands?

Comparing the prices of lighting fixtures with other brands, you'll discover that many categories of Kosoom products boast the lowest prices in Europe. All our products come with a 3-5 year warranty, ensuring a prolonged period of quality assurance, alleviating concerns about potential issues. Furthermore, the diverse product line from Kosoom caters to various lighting needs, including indoor and outdoor fixtures. Whether you're seeking ideal lighting solutions for home, commercial, or outdoor spaces, we offer a multitude of choices to meet the personalized requirements of different customers. Our commitment lies in creating bright and welcoming lighting environments while consistently striving for excellence in the diversity and quality of our products.

Can I become a partner of Kosoom?

Certainly! We welcome you to become a distributor for Kosoom. As our partner, you'll enjoy greater discounts and favorable pricing, along with support from our eight production facilities worldwide to enhance your business competitiveness.

Are there any other discounts for professionals?

Saluting the professionals and installers in the lighting industry! We recognize your dedicated expertise and contributions to the field of lighting. As a token of appreciation for your ongoing support and collaboration, we are pleased to offer you exclusive, tailored benefits. Register now to secure the advantages reserved just for you.

Can products be customized according to needs?

We are pleased to customize products to meet your specific requirements. However, customized production requires a certain amount of time and resources. Therefore, our minimum order quantity for custom products is 500 units, and the production lead time is at least 30 days or more.

Is it possible to purchase only a few lamps?

Certainly! You can choose to purchase a few light fixtures based on your actual needs. We welcome you to select according to your personal preferences and space requirements. Please note that if the order amount doesn't meet the free shipping conditions, there may be a shipping fee. It's advisable to consider buying multiple products at once. This not only helps increase the order amount for free shipping but also better satisfies your lighting needs. Additionally, purchasing a variety of light fixtures allows you to create a more diverse lighting effect in different spaces, enhancing overall aesthetics and functionality.



Kosoom offers its resellers the lowest possible price, available upon verification of identity.
Resellers can enjoy not only competitive prices, but also discounts of up to 25% if the order quantity meets certain conditions.
Please note: certain qualifications and order quantities are required to obtain this status.



Kosoom offers professionals a very convenient price, available after identity verification.
If the order quantity meets certain conditions, the professional can enjoy not only a satisfactory price, but also a discount of up to 20%.
Please note: certain qualifications and order quantities are required to obtain this status.



2% discount on purchases over 300€
5% discount on purchases over 600€
10% discount on purchases over 1000€
(The above is the amount including tax)

Welcome to Kosoom! We are here to offer you the most cost-effective spot lighting products in Europe, along with a range of thoughtful shopping benefits:

Free Shipping Policy:
In Italy, we provide free shipping for orders exceeding 120 euros.
For other European regions, you can enjoy free shipping on orders over 200 euros.

Multiple Discount Offers:
For orders surpassing 500 euros, you’ll receive an additional 2% discount.
Exceeding 1000 euros, the discount increases to 4%.
For orders exceeding 3000 euros, you’ll enjoy a generous 6% discount.

Exclusive Industry Discounts:
If you are an electrician, wholesaler, or corporate purchaser, we are willing to provide additional discounts based on your specific needs, with bulk discounts of up to 20%.

Swift Delivery Service:
We aim to dispatch your order within 24/48 hours after confirmation, ensuring you receive your desired products as soon as possible.

Long-Term Quality Assurance:
All our luminaires come with a 3-5 year quality guarantee, providing additional assurance for your purchases.

Contact Us:
Feel free to reach out for any questions or needs.
Phone: +39 3400054590
Email: [email protected]

Kosoom looks forward to providing you with high-quality lighting products and attentive service. Let’s work together to create a bright and welcoming lighting environment!

As a professional and robust commercial lighting company, Kosoom has consistently prioritized quality as our primary goal. To ensure that our products maintain the best cost-effectiveness in the market, we have implemented a series of rigorous quality control measures, ensuring that each luminaire undergoes meticulous manufacturing and strict inspection.

Quality Inspection Process:
Every product undergoes a stringent quality inspection process before leaving the factory. This includes visual checks to ensure the absence of scratches on the housing or mirrors, secure screw fastening, and accurate labeling. Additionally, we conduct photoelectric parameter tests, covering color temperature, color rendering index, luminous flux, light distribution curve, power, power factor, etc., to ensure that the product’s lighting performance reaches optimal levels. We also perform aging tests, ground resistance checks, withstand voltage tests, etc., to verify the stability and durability of the product during long-term use.

Quality Assurance Commitment:
We provide a 3-5 year warranty for each product, offering a robust guarantee for product quality. In the event of any quality issues within the warranty period, our dedicated after-sales customer service team is ready to assist you. Importantly, we pledge to adhere to a “replace-only, no repair” policy in case of product quality issues, ensuring the maximum protection of your rights.

Professional After-Sales Service:
Our after-sales customer service team is highly professional, capable of responding promptly to your needs and providing expert solutions. We strictly adhere to our after-sales policy, aiming to ensure that you feel secure and confident in purchasing and using our products.

Kosoom is committed to providing customers with outstanding value for money and excellent product quality. We will continue our unwavering efforts to ensure that you consistently enjoy a high-quality lighting experience.

Rated 4.6 out of 5

based on 20 authentic reviews

Junaid Nasir
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Ho comprato una applique led a muro con Luce riflettente Sia superiore che inferior per il soggoiorno di casa.... Prodotto davvero fantastico...
Iqra Rauf
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Ho acquistato delle lampada a parete per la camera da Letto prezzi Medio alto ma labqualita e eccelsa e li vale tutti.consegna rapidissima in un packaging perfetto consiglitissimo
Rana Safwan
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Stavo cercando su internet dei lampadari moderni per I bagni e navigando ho visto I bellissim prodotti su mazzolabluce e la sua pubbilcita ha attirato molto la Mia attenzione dando UN,occhiata Al Sito ho subito Trovato quello che cercavo.
hafiz bilal
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Posso reputare la mia personale esperienza con vito 10!ottimo rivenditore online preciso puntuale e con tanti bei prodotti di qualita .Grazie a laro sono riuscito a trovare questi faretti da incasso QUADRATI.in commercio fino ad ora ne …
Farooq Sheikh
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C e Molta Scelta ,proprio per question ho trovato quello che cercavo .optimo prodotto,spedizione rapida, imballaggio perfetto. Inoltre la comunicazione constante rende l qcquisto facile e tranquillo.
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The variety of lamps is very complete. I found the lamp I wanted. Kosoom is as professional as ever.
Ishmal Sheraz
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Ho acquistato un luce da incasso malto bello facile da pasizionare.lmballaggio e spedizione perfetto.acquistero ancora!




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