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?