any violation/problems

[mjf]

Looking to bypass ballasts in order to convert from HID to CFL.

In another case looking to reduce from mogal socket to standard socket after bypassing ballast to also convert to CFL.

Any NEC violations?

Would this negate the UL listing of the fixture?

thanks

 

[renosteinke]

Not an NEC violation as such, but listing and labeling might be a problem.

In making such a change, you essentially become the 'manufacturer' of the fixture, and any UL listing becomes irrellevant. Do you 'void' the listing? Not really - but UL has no way of knowing if the changes made would pass their tests, so they'll want to do a 'field evaluation.' An alternative would be were you to participate in UL listing as a ;lamp shop' yourself.

Now, if the fixtures are mercury vapor fixtures, there are UL listed replacement CFL's that are intended to work together with the ballasts.

There are also 120v CFL's made with mogul bases; I have a 55w one in my "Wobblelight."