250w HPS bulb with a 400w HPS ballast?

L

lollygagging

Member

Jun 5, 2010

• #1

Can a 250 w HPS bulb work with a 400 w ballast for lower temps?

 

M

mfdiamond

Well-Known Member

Jun 6, 2010

• #2

i was curious about this too...

 

jimmy130380

Well-Known Member

Jun 6, 2010

• #3

no you can not

 

mickyjuice

Well-Known Member

Jun 6, 2010

• #4

the only reason it would be too hot is if you dont have a strong enough exhaust the 250w will work but will run brighter and hotter than normal and will burn out very quickly (possibly straight away i know jimmy130380) plus you get twice the lumens with a 400w

 

L4D

Active Member

Jun 6, 2010

• #5

its not worth the safety risk

 

PussymOneyWeed

Well-Known Member

Jun 6, 2010

• #6

no.

[10 characters]

 

tamjam69

Well-Known Member

Jun 6, 2010

• #7

!!!!!!!!!!!!!!!!! BANG !!!!!!!!!!!!!!!!!

 

M

MJMMM

Member

Jun 6, 2010

• #8

Could someone explain the reasoning behiind the "WTF NO!" and "OMG!!!1!!1" replies? The ballast (or any transformer) would not dictate the power consumption of connected components right? I know it doesn't with any I have seen. If anything I would expect damage to the ballast if it is not capable of running at a significantly low er load than its rated max (as it would produce more heat)?

 

Harrekin

Well-Known Member

Jun 6, 2010

• #9

The point of the ballast is that it specifically regulates the current flowing from the socket on the wall into the bulb tho...so wouldnt it just blow the bulb straight away?

 

M

MJMMM

Member

Jun 6, 2010

• #10

Harrekin said:

The point of the ballast is that it specifically regulates the current flowing from the socket on the wall into the bulb tho?

Click to expand...

I thought they regulated the voltage (stepping it up to the 000's or whatever these bulbs use)?