Is a watt a watt regardless of the source?
Compare (2) 90 watt LED fixtures (180 watt total) to a hybrid fixture with (1) 150 watt Metal Halide & (1) 39 watt PC. (190 watts total). Will it actually cost less to run the LED lamps as opposed to the hybrid fixture with Metal Halide & PC lamps? Or is a watt a watt regardless of the source?
Last edited by thegr8wendt; 12-16-2012 at 05:42 AM..