hi, Yes it is possible. HID kits for cars are basically mini metal helide lamps. They come in 3000K to 25000K and woulb be a great candidate for stealth grow box. HID kits are cheaper now you can get a kit for about $60 a pair, these lights are only 35 watts and 55 watt kits are available. These lights put out 3500 lmin a piece not bad for 35 watts. If you get an old housing say one from a fog driving light, you can focus the beam to the plants. Use a 6000 or 8000K for veg and switch to a 3000K for bud. These 3000k's look very yellow so i believe they are much lower in temp that they claim. I'm building a small grow box as we speak and will post pics soon. Another advantage is these lights don't produce a lot of heat the only own side is they don't last long in a car. they are ratedfor 3000hrs but are known to fail much sooner. I'm hopping that road vibration and under hood heat may contribute to such a short life, and if they are kept cooler in a grow box, they will last longer. Initial test show awesome light penetration, way brighter and better than CFL. I'm certain these willwork better than cfl. Another posiblity is to run this HID system on a solar or wind generator and a battery because these are 12volt dc. Drawing only 6 amps for two lights this is easy to achieve.
