According to Mike Fritz :
Abe wrote:
Of course. You need all the old lamp holders, and buy wire nuts for 11
wires I believe (8 for lamp holders, hot, neutral, and one in case you
drop any of the first 10). You'll only be able to buy electronic very
soon, but they're great. No hum, more light, and less current. And,
the tubes will last longer.

Why do you say magnetic ballasts won't be available soon? Just
curious.

One big reason is energy efficiency. Another possible reason may be the
cost of electronics going down. I believe they are now required in
business buildings. They may even be required as replacement ballasts in
businesses also.

Magnetic ballasts are considered hazardous waste. At least until recently
they contained PCBs, and many jurisdictions (try to) limit how
many you throw out in the trash and/or route them to hazmat disposal.

Electronic ballasts work MUCH better at low temperatures too.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.