{"product_id":"led-cob-28mm-5w-lumina-cald-rece","title":"LED COB 28mm - 5W, Warm\/Cool Light","description":"\u003cdiv class=\"cl-desc\"\u003e\n\n\n\u003cdiv class=\"cl-intro\"\u003e\n\n\u003ch2\u003e5W 28mm COB LED Chip with Warm or Cool Light\u003c\/h2\u003e\n\n\u003cp\u003eThe 5W COB LED chip with a 28mm diameter is a compact and versatile light source, designed for professional lighting or DIY projects. The 2-in-1 module allows operation with cool white, warm white color temperatures, or both simultaneously, thus achieving neutral light. The aluminum substrate with mounting slots ensures efficient heat dissipation and a long lifespan.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003cdiv class=\"cl-benefits\"\u003e\n\n\u003ch2\u003eWhat you get with this product\u003c\/h2\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eMaximum flexibility in projects — the 2-in-1 chip operates independently on cool white, warm white, or combined for neutral light, without additional components\u003c\/li\u003e\n\n\u003cli\u003eHigh luminous flux for its small size — 500-550 lm at just 5W, with an efficiency of 100-110 lm\/W, suitable for spotlights, floodlights, and light fixtures\u003c\/li\u003e\n\n\u003cli\u003eLifespan of up to 20,000 hours — rare replacements and long-term savings\u003c\/li\u003e\n\n\u003cli\u003eThe aluminum alloy substrate with radial slots dissipates heat evenly, protecting the chip and maintaining consistent performance\u003c\/li\u003e\n\n\u003cli\u003eColor rendering index Ra over 80 — colors are rendered correctly and naturally, useful in commercial, hospitality, or office lighting\u003c\/li\u003e\n\n\u003cli\u003eCompatible with a wide range of applications — recessed or surface-mounted spotlights, light boxes, car-moto lamps, floodlights, ambient or industrial lighting\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003cdiv class=\"cl-how\"\u003e\n\n\u003ch2\u003eHow it works and how to install it\u003c\/h2\u003e\n\n\u003cp\u003eThe COB LED chip is powered by 15-16V DC continuous voltage through a compatible driver, via the four power contacts (2 positive + 2 negative) marked on the metal substrate. Mounting is done by soldering or mechanical fastening on a heatsink, with the mandatory application of thermal paste between the chip and the cooling surface. It does not require special tools, but it is important to observe polarity and ensure proper cooling to avoid overheating.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003cdiv class=\"cl-faq\"\u003e\n\n\u003ch2\u003eFrequently asked questions\u003c\/h2\u003e\n\n\u003cdiv class=\"cl-faq-item\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat driver do I need for this 5W COB LED chip?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eA constant current source (LED driver) that provides 15-16V DC at a current of 280-300mA is required. It should not be connected directly to the mains or variable voltage sources.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cl-faq-item\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I use the chip with only one color temperature, not both?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eYes, the 2-in-1 module allows independent powering of the cool white or warm white channel, depending on the contacts to which you connect the driver.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"cl-faq-item\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs thermal paste mandatory for installation?\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eYes, applying thermal paste between the chip and the heatsink is mandatory. Without it, the junction temperature rises rapidly and the chip's lifespan decreases significantly.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003cdiv class=\"cl-specs\"\u003e\n\n\u003ch2\u003eTechnical specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eModel\u003c\/td\u003e\n\n\u003ctd\u003eLED-H28-2B5C2\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSKU\u003c\/td\u003e\n\n\u003ctd\u003eQ-20C056\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eType\u003c\/td\u003e\n\n\u003ctd\u003e2-in-1 COB LED Chip\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003ePower\u003c\/td\u003e\n\n\u003ctd\u003e5W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSupply voltage\u003c\/td\u003e\n\n\u003ctd\u003e15 - 16V DC\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eOperating current\u003c\/td\u003e\n\n\u003ctd\u003e280 - 300mA\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eColor temperature\u003c\/td\u003e\n\n\u003ctd\u003eCool White 6000-6500K \/ Warm White 2800-3200K\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eLuminous flux\u003c\/td\u003e\n\n\u003ctd\u003e500 - 550 lm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eLuminous efficiency\u003c\/td\u003e\n\n\u003ctd\u003e100 - 110 lm\/W\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eColor rendering index (CRI)\u003c\/td\u003e\n\n\u003ctd\u003eRa over 80\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eChip diameter\u003c\/td\u003e\n\n\u003ctd\u003e28 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eThickness\u003c\/td\u003e\n\n\u003ctd\u003e1.8 mm\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eSubstrate\u003c\/td\u003e\n\n\u003ctd\u003eAluminum alloy with radial slots\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eChip protection\u003c\/td\u003e\n\n\u003ctd\u003eSilicone gel\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003ePower contacts\u003c\/td\u003e\n\n\u003ctd\u003e4 (2 positive + 2 negative)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003ctd\u003eLifespan\u003c\/td\u003e\n\n\u003ctd\u003eup to 20,000 hours\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\n\u003c\/div\u003e\n\n\n\u003cdiv class=\"cl-warranty\"\u003e\n\n\u003ch2\u003eWarranty and support\u003c\/h2\u003e\n\n\u003cp\u003eThe product benefits from a 2-year legal warranty in accordance with current Romanian legislation. We accept returns within 30 days of receipt, without requiring justification. Delivery is carried out quickly by courier throughout Romania.\u003c\/p\u003e\n\n\n\u003c\/div\u003e\n\n\n\n\u003c\/div\u003e","brand":"OEM","offers":[{"title":"Default Title","offer_id":56801659912523,"sku":"Q-20C056","price":1.95,"currency_code":"EUR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1032\/2067\/4891\/files\/Led-Cob-28mm-_E2_80_93-5W-Lumina-CaldRece_e62289c0-91b3-4f10-85f4-58df94c420a5.jpg?v=1773834133","url":"https:\/\/classlights.eu\/hu-eu\/products\/led-cob-28mm-5w-lumina-cald-rece","provider":"ClassLights","version":"1.0","type":"link"}