Can I Use A 400w Bulb In A 250w Ballast

Lamp 250 ballast 250.

Can i use a 400w bulb in a 250w ballast.

Two grows seems a little soon to replace the bulb. If you look at a 400 and 250 ballast side by side the 400 is bigger. Attaching a weaker light shouldn t hurt anything. If someone has experimented with a light meter and temps proving this is safe i would like to hear the results.

Use the proper setup. This shortens the life. The ballast is trying to push that 400w into the 250w lamp. I don t think it would work the light is only capable of using 250w.

Don t put a stronger light on it though. On the other hand in breakdown service if a lamp roasts and during a few days before the new purchase one can without risk use 1 ballast 400 per 1 lamp 600 the ballast does not put has the lamp badly to in no case. The ballast is trying to push that 400w into the 250w lamp. I was considering changing the bulb as it has done 2 grows so should i buy a 250w or 400w bulb.

The 400 will light but not any brighter than a 250 would. From all that i have read about mh s you can t run 250 watt bulbs on a 400 watt ballast. The ballast is able to provide 400w. Same applies with the ordinary lamps in your house.

You will eventually burn out the ballast or worse burn down your house. Lamp 400 ballast 400 etc. The 250w lamp will burn hotter and a little brighter than normal but will use almost as much power as a 400w lamp.