How many Watts is this bulb?

[duhwun]

I have a 10k metal halide bulb but I forgot how many watts it was. Its approximately 11.5" long. I went to the fish store and the guy told me the watts depends on how long the bulb was and according to him mine is 400 watts. I dont remember it being that high but just to make sure can someone tell from looking at it in the picture below.

 

[wattsupdoc]

There's no way to know. The length might be different, but I think not. But, I dunno?

I take it you don't know what the ballast is that's firing it? Are you looking to replace the bulb? One way you could determine is to get a kill-a-watt. And plug the ballast with the bulb s-c-r-e-w-e-d in and see what the kill-a-watt says.

 

[duhwun]

where can i get this kill-a-watt device ?

 

[hexedagain1]

Some bulbs have the wattage stamped on the mogul base. It would be right by the edge of the glass if so.

 

[salt210]

Originally Posted by hexedagain1
http:///forum/post/2764932
Some bulbs have the wattage stamped on the mogul base. It would be right by the edge of the glass if so.
+1
I remember seeing them when I was looking at GFCI's
and just through it out there my 250 is about 9.5in

 

[duhwun]

just to be on the safe side, I decided to buy the 250 watt 14k bulb. I figure 400 watt would be too much for a 55 gallon anyways.

 

[reefkprz]

look up the model number of your ballast, it will tell you what size bulb you need, if you cant find the info contact the manufacturer.

 

[wattsupdoc]

You need to determine what size your ballast is, reef's right the model number and a little googling and you will know. Anyways, you can t just interchange bulb sizes, it doesn't work that way. Just to be on the safe side, DONT USE THAT BULB UNTIL YOU DETERMINE THE BALLAST SIZE.
A little googling goes a long way.......