Adjustable 400w ballast, which bulb?

poopmaster

Well-Known Member

• Sep 16, 2010

• #1

So my ballast is 400w and I bought 400w bulb. The ballast has a knob on it that says super lumen, 400w, 275w, and 250w. Can I use my 400w bulb and run it at 250? Or must I use a 250w bulb?

Thanks!

 

fabfun

New Member

• Sep 18, 2010

• #2

u must use the bulb that it is rated for 400 w 400 watt bulb 250 watts 250 bulb at 250 with a 400 watt bulb it may not even fire the bulb

 

darkdestruction420

Well-Known Member

• Sep 18, 2010

• #3

those are just the power settings and how many watts it will use on each one.. 400w=on high,275w=medium, 250w-low. need a 400w bulb for it.

 

poopmaster

Well-Known Member

• Sep 18, 2010

• #4

The issue here is the heat. I was hoping to keep the heat down by running it at 250w instead of 400w. I only have a 400w bulb and with my lady unemployed, we are trying to not spend any money. I'd prefer not to have to buy a 250w bulb and just use the 400w bulb, but that's why I'm asking here. Use the 400w or buy a 250w?

 

fabfun

New Member

• Sep 18, 2010

• #5

buy a 250 it is like 21 bucks at home depot

 

nickfury510

Well-Known Member

• Sep 18, 2010

• #6

You can dial down the 400w bulb. I have a 600w lumatek that dials down to 400w and 320w.The only bulb i keep in it is a 600w. I dial it down to 400w on really hot days or when i bring new clones in and dial it up to super lumens when im finishing a round. If you put a bulb thats not rated for that ballast into said ballast you run the risk of fire, bulb explosion or burning out your equipment.

 

fabfun

New Member

• Sep 18, 2010

• #7

check inbox got a urgent plant matter

nickfury510 said:

You can dial down the 400w bulb. I have a 600w lumatek that dials down to 400w and 320w.The only bulb i keep in it is a 600w. I dial it down to 400w on really hot days or when i bring new clones in and dial it up to super lumens when im finishing a round. If you put a bulb thats not rated for that ballast into said ballast you run the risk of fire, bulb explosion or burning out your equipment.

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poopmaster

Well-Known Member

• Sep 18, 2010

• #8

Thanks for the info nickfury510