How long do COB LEDs last?
Using COB LEDs as Grow Lights
|Light Type||µmol/j (ppf/w)||Lifespan|
|COB LED||1.8-2.5||30,000 – 60,000|
|Double-ended HPS||1.4-1.8||10,000 – 15,000|
|Ceramic Metal Halide||1.1-1.5||15,000 – 20,000|
|High Pressure Sodium||0.8-1.7||9,000 – 17,000|
Are COB LEDs dimmable?
Dim-to-Warm is COB LED which works like halogen lamp when dimmed. Its specialty is that when you dim it the color temperature gets warmer. Usually dimming does not affect the color temperature of the LED. … It’s perfect for space where you want to have dimmed and warm toned atmospheric lighting.
How do you wire a COB LED in series?
When you wire in series, you add the forward voltages of each LED in the circuit but the current fed to each LED remains the same. If you have 3 LED COBs, each with a forward voltage of 36V at a given current, when you wire them in series, the total voltage drop of the circuit becomes 108 Volts.
Does a COB LED need a driver?
LED drivers are the handy little boxes that take the power from your electrical outlet and convert it to a form that the COBs can use. The electricity coming from your outlet is alternating current (AC), and this does not work for COB LEDs – they require direct current (DC) instead.
How efficient are COB lights?
This improvement is said to deliver an energy savings of approximately 11 percent compared to the prior product generation. This series is available in four light-emitting surface (LES) configurations and can operate over a broad current range.
Do COB LED need heatsink?
In the case of COB LEDs, it is possible to directly attach a COB LED to a heat sink (see Figure 2). As a result, COB LEDs do not require PCBs in order to install LEDs into a luminaire and the subsequent reflow process is no longer necessary.