it takes like 1 minute to get back goin. heres what it does, starts up just fine infact it takes a whole minute to get to full brightness. then about 5 min down the line it goes to a MH colour for a good 15ish mins then turns off for seriously a minute maybe less and repeats.but sometimes it stays on for hours then does it. the power thing is fine i had a 400 MH running off the same plug. my familys pretty cool with me growen so they turn off the lights and what not when its not in use so i dont think its power. maybe its the bulb, i noticed when i first took it all apart i couldnt get the bulb to unscrew so i was real careful taken it apart lol