Hello everyone, I am working on a project and wanted some input before proceeding further. These LED's I use are pricey, ordered from China, so waiting a month to get them in. I want to make sure I do it correctly, because I can't exactly run down to Radio Shack and buy more if I make a mistake.
Using this 100 watt LED: http://www.ebay.com/itm/100W-100Wat...825?pt=LH_DefaultDomain_0&hash=item257b74f2b1
Power Consumption:100w
Using this 100 watt LED driver/converter: http://www.ebay.com/itm/271455842760?_trksid=p2060778.m1438.l2649&ssPageName=STRK:MEBIDX:IT
My power source is 12 volt lead acid, automotive battery. As this is a 12 volt application. A DC converter is a must.
QUESTION: The LED has an operating range of 30-34 volts, this achieves optimal light output. The driver has CC (Constant Current) and CV (Constant Voltage) adjustable potentiometer. When I set the voltage to 32 volts, to achieve highest luminous output the CC is thus increased to around 4,500 mA. By reaching the optimal voltage setting for the LED to perform, the current adjusts along with it. To keep the driver cool, I'm having to adjust the CC to 3.25 amps and this adjusts the voltage to 28 volts. Now it operates at a lower luminous intensity by 2-4 volts. I want to achieve 30-34 volt range, without overdriving the LED and driver.
Is this a problem? Am I overdriving the LED? The driver gets incredibly HOT to the touch when running like this for a while and the shell temperature increases close to threshold. I want to drive the LED, but I don't want to burn out the chip or the driver/converter.
Any input would be appreciated!
Using this 100 watt LED: http://www.ebay.com/itm/100W-100Wat...825?pt=LH_DefaultDomain_0&hash=item257b74f2b1
Power Consumption:100w
- Power Input: DC:30-34V
- Color Temperature: Green(Wavelength 520-525nm)
- Color Rendering Index: 45-65Ra
- Luminous Flux: 7000-7500lm
- FWD Voltage 3,500 mA
Using this 100 watt LED driver/converter: http://www.ebay.com/itm/271455842760?_trksid=p2060778.m1438.l2649&ssPageName=STRK:MEBIDX:IT
My power source is 12 volt lead acid, automotive battery. As this is a 12 volt application. A DC converter is a must.
QUESTION: The LED has an operating range of 30-34 volts, this achieves optimal light output. The driver has CC (Constant Current) and CV (Constant Voltage) adjustable potentiometer. When I set the voltage to 32 volts, to achieve highest luminous output the CC is thus increased to around 4,500 mA. By reaching the optimal voltage setting for the LED to perform, the current adjusts along with it. To keep the driver cool, I'm having to adjust the CC to 3.25 amps and this adjusts the voltage to 28 volts. Now it operates at a lower luminous intensity by 2-4 volts. I want to achieve 30-34 volt range, without overdriving the LED and driver.
Is this a problem? Am I overdriving the LED? The driver gets incredibly HOT to the touch when running like this for a while and the shell temperature increases close to threshold. I want to drive the LED, but I don't want to burn out the chip or the driver/converter.
Any input would be appreciated!