nice im really liking this idea. i have 50 watt xenon hids on my car and they are bright so thats a 100 watts which i think together is 10000 lumens which would take 15 kits to equal 1 1000watt hid lumens.and running at 12 volts is better than running a 120v hid but it would be more cost effective to go with a 1000w hid ballast (but cost isnt an issue) to get the same amount of lumens. but the heat produced by it is what im not liking and i dont know how well it would work on a dc/ac inverter since my house is ran on solar power only. i have a big enough battery bank with 2 2000 watt wind turbines for 24/7 charging not to mention 50 60watt panels. the room i built is 8x8 divided by mylar to have 4x4 for flowering and veging.

is the reflector needed why not have the bulb sitting in the middle and one on top? i think with these you could have a better light penetration since you can place the bulbs in different spots as long as they dont get to hot right?
libraman Reviewed by libraman on . automotive HID lights vs. cfl's Hi, I'm starting this thread to compare a variety of lights for small closet grows. First i'm posting only light outputs of 250 watt 6400K vs. 250 watt 25000K vs. automotive HID lamps. I built three indenticle boxes 24' X 22" x 36". I'm measuring output at the bottom of the box. in the first photo the box on the bottom left is the 6400K 250 watt cfl, bottom right is the car HID and the top is the 250 watt 25000K. Average light output are as follows. 250/6400K 5000lux peak was 5410 lux, Rating: 5