new radium bulbs ones way brighter then other same ballast

[BrentH]

im running 4x 400 WATT radiums I replaced 2 of the bulbs tonight as maintenance one of them looks brighter then the other 3 anyone had this issue or know why thank in advance

 

[Piper27]

What ballasts are you using? I have had that issue with reflux bulbs once, also with an older bluewave ballast. They may just need to burn in all the way. I would wait for that until you make any swaps.

 

[BrentH]

I'm use inch lumatek adjustable ballast on the 400 setting and same refectors

 

[Reef Bass]

+1 for giving it some burn in time.

Also, try swapping the bulbs. If the same side is still dimmer, it may be an issue with the ballast. Make sure you give things enough time to cool after turning the lights off before turning them back on. I usually go a half hour to be safe.

Coincidentally, I just swapped out my 400w Radiums yesterday. Brighter and whiter. :dance:

 

[BrentH]

It actually looks a little better tonight but now I'm hearing to make sure th nipple is up anyone heard of this