Hello,
I have attached a picture of a little device under my hood which I don't know what it is. The light bulb under my hood doesn't seem to be working properly anymore, but the flourescent bulb doesn't seem to be the problem because I have just purchased it not too long ago and it works in the kitchen. Could the problem be this little device?
If it is, could somebody please explain to me what it is and where I can get it. What would be recommended for a 30 gallon tank or does it not matter.

I have attached a picture of a little device under my hood which I don't know what it is. The light bulb under my hood doesn't seem to be working properly anymore, but the flourescent bulb doesn't seem to be the problem because I have just purchased it not too long ago and it works in the kitchen. Could the problem be this little device?
If it is, could somebody please explain to me what it is and where I can get it. What would be recommended for a 30 gallon tank or does it not matter.
