"10 watt" LED
A while ago, as an experiment, I bought a 12v outdoor landscape light that claimed 10w warm white. TO NO one's surprise it did not consume 10 watts, and while it did respond to a PWM LED dimmer, th...
Forum Discussion
MEXICOWANDERER wrote:
What is missing is compensation for a two volt spread in supply voltage. This is the primary justification for using PWM rather than pure resistance
x2 ... active circuitry, either linear or switching is much better suited to an automotive environment that is an RV. I designed my personal fixtures to handle at least 18 volts input, with 35 volt ceramic caps on the input stage.
Lets not even get started on load dumps and other transients that SAE specs worry about :)
