light rails are nice... like HH said... if cooling using tubes/exhaust is a must.. light rails can make things a bit complicated.. bending joints and such..

but light rails are really fun and you can get the bulb CLOSE to your plants
Garden Knowm Reviewed by Garden Knowm on . Light Rails? Thinkin of getting a 1000w HPS and a light rail... Anyone use or have used a light rail? Any info on this subject would be greatly apprtiated. (I'm Baked and behond) OR the 600w hps and 400mh combo light on a rail ...what do ya think about that compared to just 1000W of HPS. I no it would be hotter.Thinkin of getting 1000w hps and later getting a MH . Rating: 5