Changing ballast help

[Twisted-1]

Just wondering how big these ballast are. It has to fit into my hood where the old one did. It measures 5 3/4 long x1 1/2 wide and 1 1/4 high.
I will try giving litemore a call. Thanx.

[muck]

Sorry.. I missed the part about 18W.. oops.

You will probably only need a WH2.

Specs..

Maximum Power: 35W
Model Number: WH2-120-L
Maximum Current: .33 AMP
Operating Voltage: 120 VAC
Ballast Case Size: H 1.25" x W 1" x L 5.5"
Ballast Weight: 7 oz.

http://www.fulham.com/Detail_Ballasts.php?ID=WH2-120-L

[Twisted-1]

All the ballasts I could find are too long to fit into where the old ballast goes. Still wondering what the difference between a magnetic and electric ballast is and if it matters if I change it to a magnetic ballast. Nobody I have talked to know at the LFS and lighting/electrical stores if I can change the ballast type.

[midgetwaiter]

There isn't a reason you can't switch to a magnetic ballast. Electronic ballasts (fluorescent) are generally superior, you get much longer bulb life and you won't see the flicker some people notice with magnetics.

If it's all that fits go for it.