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

You will eventually burn out the ballast or worse burn down your house. 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. Use the proper setup.

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Same applies with the ordinary lamps in your house.

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

If you look at a 400 and 250 ballast side by side the 400 is bigger. Don t put a stronger light on it though. The 250w lamp will burn hotter and a little brighter than normal but will use almost as much power as a 400w lamp. The ballast is able to provide 400w.

I don t think it would work the light is only capable of using 250w. The ballast is trying to push that 400w into the 250w lamp. If someone has experimented with a light meter and temps proving this is safe i would like to hear the results. Two grows seems a little soon to replace the bulb.

I was considering changing the bulb as it has done 2 grows so should i buy a 250w or 400w bulb. Attaching a weaker light shouldn t hurt anything. Lamp 400 ballast 400 etc. The 400 will light but not any brighter than a 250 would.

Lamp 250 ballast 250. This shortens the life. From all that i have read about mh s you can t run 250 watt bulbs on a 400 watt ballast. The 250w lamp will burn hotter and a little brighter than normal but will use almost as much power as a 400w lamp.

I would think that the ballast is rated for a max 400w. This shortens the. The ballast is trying to push that 400w into the 250w lamp.

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