New MH bulb not working - help

[CMOS]

Howdy All,

I just got a new 175W Ushio MH bulb for a routine replacement. When installed, the new bulb initially begins to fire, then dies out after about 20-30 seconds. The "old" bulb still works fine in the same socket.

Is it more likely that this is a bulb issue or maybe an old capacitor in the ballast assembly?

The ballast is an older Custom Sea Life unit.

Thoughts?

CMOS

 

[fastrd400]

Gotta be the bulb if the old one still fires.

 

[Smitty]

Excuse me for asking this, but is the ballast rated for a 175 way bulb also? I've seen some people try to place 175 watt bulbs in fixtures meant for 150 watts.

 

[CMOS]

Excuse me for asking this, but is the ballast rated for a 175 way bulb also? I've seen some people try to place 175 watt bulbs in fixtures meant for 150 watts.

Yes, the manufacturing tag on the ballast states, 120V, 8A, 216W. As I said, it's been working fine for over a year with the "old" bulb.

BTW - I did notice that the new bulb has a rattling sound to it when lightly shaken. This disturbs me . . .:grumble:


CMOS

 

[Smitty]

Yeah, it was probably damaged during shipping...most bulbs are. It shouldn't be a problem to return it.