I have a problem with my 400w reflector,NEED HELP

i have 3 reflectors in my growroom,2 400w and 1 600w,i got this ballast out of the hood so it wouldnt release heat in the flowering room had this done on the 600w also the other 400w i left intact i use it for the mothers so its not a problem,every day i get to check on the flowering plants soon as the light come on the 600w works but the 400w doesnt start so i have to take it of and then it starts,why is this is the ballast to far away,i did cut the cable shorter now its about 4 feet is this to long again.any advice much appreciated

recheck your wiring then recheck your wiring....rob

i did that ,and then i sent it to an electrician,i dont get it soon as i put it down from the chain and then plug it in it starts,is it possible that the distance between the ballast and the ligh is the couse

Maybe you should try a better grade extenstion lead. Sounds like a lead problem.