Hello!
I am trying to wrap my head around LED lighting and have done a good amount of research into LEDEngin's LED emitter modules. I have my eye on the 30W emitter but this has a forward voltage of 42V (here it is http://www.mouser.com/ProductDetail/LED-Engin/LZC-C0WW00/?qs=sGAEpiMZZMu4Prknbu83yxmdW0DL2XhYFIkVLBVIvVQ%3D). What are my options for powering such a device? Part of the requirement though is being able to dim the LED from an arduino via PWM. I have plenty of power at the 12V range but it seems getting this up to the 42V level would be quite challenging and/or expensive. And since this is supposed to be something where there is supposed to be many around the house, price is a considerable factor.
Thanks for all replies!