LED COB 28mm - 10W, Warm/Cool Light
Available in stock
| Quantity | Price per unit | You save |
|---|---|---|
| 1–2 pcs | 13,99 lei | — |
| 3–4 pcs | 13,29 lei | 5% (−0,70 lei/unit) |
| 5–10 pcs | 12,59 lei | 10% (−1,40 lei/unit) |
| 11+ pcs | 11,89 lei | 15% (−2,10 lei/unit) |
28mm 10W COB LED Chip with two color temperatures
The 28mm 10W COB LED Chip is a compact light source with injected COB technology, offering two independent color temperatures—cool white and warm white—on the same circular module. This 2-in-1 configuration allows for the use of each channel separately or simultaneously, thus achieving adjustable neutral light. Suitable for DIY projects, lighting fixture repairs, recessed spotlights, projectors, or any application requiring a compact 10W LED source.
What you get with this product
- Two color temperatures on a single chip—cool white (6000-6500K) and warm white, usable independently or combined for neutral light
- Compact 28mm format with included aluminum alloy heatsink bracket, ensuring uniform thermal dissipation without additional accessories
- Luminous efficacy of 100-110 lm/W and flux of 1000-1100 lm—real 10W power in a small module
- Color rendering index Ra over 80, meaning natural, true-to-life colors, also suitable for commercial or hospitality lighting
- Four clearly marked power contacts (2+ and 2-) that simplify connection and allow separate control of the two color channels
- Lifespan of up to 20,000 hours, reducing replacement frequency in hard-to-reach installations
How it works and how to install it
The 28mm COB LED chip is powered at 30-32V DC with a current of 280-300mA, so it requires an LED driver compatible with these parameters—it does not connect directly to the mains. Mounting is done on an aluminum heatsink (included) using thermal paste applied to the contact surface, to prevent overheating. Connection is made via the four pads on the board, observing the marked polarity, after which the chip is ready for operation.
Frequently asked questions
Do I need a separate driver for this 10W COB LED chip?
Yes, the chip operates at 30-32V DC and 280-300mA, so an LED driver with these output parameters is mandatory—it does not power directly from 220V.
Can I use only one color temperature, for example, only warm white?
Yes, the four contacts allow independent powering of each channel, so you can exclusively use the cool white channel, exclusively the warm white channel, or both simultaneously for a neutral effect.
Is thermal paste required for mounting?
Yes, the chip generates significant heat at 10W and must be mounted with thermal paste between the chip and the aluminum heatsink, otherwise the lifespan will be considerably reduced.
Technical specifications
| Type | 2-in-1 COB LED Chip (Cool White + Warm White) |
| Power | 10W |
| Supply voltage | 30 - 32V DC |
| Current | 280 - 300mA |
| Color temperature | 6000 - 6500K (Cool White) / Warm White (WW) |
| Luminous flux | 1000 - 1100 lm |
| Luminous efficacy | 100 - 110 lm/W |
| Color Rendering Index (CRI) | Ra > 80 |
| Chip diameter | 28 mm |
| Thickness | 1.8 mm |
| Heatsink bracket | Aluminum alloy, round shape with mounting slots |
| Number of contacts | 4 (2+ and 2-) |
| Lifespan | up to 20,000 hours |
| SKU | Q-20C058 |
Warranty and support
The product benefits from a 2-year legal warranty in accordance with current Romanian legislation. We accept returns within 30 days of receiving the order, without requiring justification. Delivery is carried out quickly by courier within Romania.
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