Ballasts

[acidbaby1]

Please, look inside of your ballasts. In my Custom Sea Life is only two transformers. These units are not converted to DC. If you read the transformers' labels, you can pick them up at any electronics store. To convert transformers to run DC, you will nedd an item called a "Step-Down Bridge" this is the common name. One of these will help you run DC fans to cool your lights. Make sure your wiring is straight, and hope you get a ground. My commercial lighting system is not grounded, and that concerns me. A retrofit may be in order for my Custonm Sea Life PC's.

 

[AnotherGoldenTeapot]

Are you confusing a "transformer" with a "choke"?

I choose to run mains-voltage AC fans to cool my lights.

It would not be hard to add an earth - assuming there isn't one already.