Old Fluorescent lights

[rpcancun]

I was wondering if some one might know,..I am currently replacing ancient

lighting, they are those dual 8 foot tubes 75w each total 150w each setup

but i was wondering how much more wattage is wasted on the ballast?

Cause they are usually warm or hot.

Any guesses??

Thx

 

[Nando]

It depends who make them and the quality of the inductor core.

The watts are around 10 to 15 % for the larger ones.

If you are replacing them, use electronic ballasts and you will be much better and less current, they are around 95 to 97 %, also no more flickering since it is done at high frequency and the light it is at least 50 % higher level.

Nando

[rpcancun]

hmm never thought of that but since im in mexico if they even have them they will be very expensive...

ive been putting in the watt saver bulbs instead...