Thanks. How does one go about establishing a maximum output.
When I hook these LED rings up to my little PSU I can set it to VDC at 7.5, 9, and 12 and at each increasing voltage the LEDS shine more brightly. The maximum is supposed to be 14VDC but my PSU doesn't got that high.
ERGO my conclusion that it is volts that control the brightness.
A PWM unit (if I am correct) imposes an on off cycle to the line current - - yes? The speed of the on/off determines the amount of energy reaching the load thus the brightness of the lamp, LED or motor speed. Faster cycles = brighter lights or faster motor speeds. Am I correct thus far?
What then would you say is the reason my LED rings illuminated differently at different voltages.
It bears noting that the retailer (when they had them for sale) claimed they ran at 9 - 14 VDC at 3 watts. The retailer said nothing about dimming them.
So While I understand the PWM statement, I don't get why I can dim or brighten them by changing voltages.