Dimmable bulbs heat question

D

Drampire

Active Member

Nov 11, 2011

• #1

Would there be much difference in heat between a 600W Dimmable set at 250W and a regular 250W bulb in a 6" cool tube?

I was looking at a http://www.ebay.com/itm/600-W-400-W-250-W-Digital-Dimmable-Ballast-Grow-Light-HPS-MH-YOYO-COOL-TUBE-/320789745895?pt=LH_DefaultDomain_0&hash=item4ab08f10e7

although it might be a better/safer bet to spend a few bucks more and get something name brand.

 

Mr.J420

Well-Known Member

Nov 12, 2011

• #2

I dont think there would be a siginificant difference. Especially if you design your venting system to handle the full 600W the light can give. Atleast this import ballast gives you specific wattages when dimming, I think you have to change the bulb, not positive but it makes sence.

 

WaxxyNuggets

Active Member

Nov 12, 2011

• #3

I have dimmables dont change bulbs... it ignites bulb at full wattage then runs a reduced wattage to the bulb after it warms up, thus dimming it. Dont put a 250 in a 600 dimmable as it will ignite at 600. boom goes the dynamite?

 

WaxxyNuggets

Active Member

Nov 12, 2011

• #4

and spend money on a nice dimmable if you can man. Has a fair share of advantages imo.

 

Mr.J420

Well-Known Member

Nov 13, 2011

• #5

Good to know Waxynugs! Very important.
How exactly are you using the dimmable's?
I could see a dimmable being great in veg but in flower id have it at 100% all the time.

 

cannabineer

Ursus marijanus

Nov 13, 2011

• #6

Dumb Q: can anyone tell me the efficiency ratio (lumens for the watts) of a 600 run at 250 v. a 250 run at 250? thanks, cn

 

Mr.J420

Well-Known Member

Nov 14, 2011

• #7

I dont think thats a dumb question.

cannabineer said:

Dumb Q: can anyone tell me the efficiency ratio (lumens for the watts) of a 600 run at 250 v. a 250 run at 250? thanks, cn

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