Originally Posted by Big Tommy C
While it's true that HIDs used to be more efficient than LEDs, that is no longer the case.
A Seoul P4 (U bin) will give you 200+ lumen output at 3.7 Watts.
Does not seem that way by your example. ???? There may be others. **********?
If my math is correct 200 lumens divided by 3.7 watts is .......................54.05 lumens per watt.
My 900 lumen HID is 16 watts. that works out to .................................56.25 lumens per watt.