Page 1 of 1

Lamp voltages and currents

Posted: Sat Jun 22, 2024 11:41 pm
by PeterG
Anyone happen to know the operating voltage and current of 5ft 65w T8 and T12 fluorescent tubes? Can't find the info and even the holy grail of lamptech doesn't seem to list specs for those lamps - maybe I'm just being daft and missed it though.

Re: Lamp voltages and currents

Posted: Tue Jun 25, 2024 2:16 pm
by Beta 5
According to Osram, their Lumilux 58W T8's run at 110V 0.67A, so I'd imagine a 65W T12 is similar.

Re: Lamp voltages and currents

Posted: Wed Jun 26, 2024 11:29 pm
by PeterG
According to Osram, their Lumilux 58W T8's run at 110V 0.67A, so I'd imagine a 65W T12 is similar.
Thanks for that. Most useful to know!

Re: Lamp voltages and currents

Posted: Fri Jun 28, 2024 9:52 pm
by Beta 5
No problem :) I'm sure I've got the data for other sizes somewhere too. Mostly the current is stated on the ballast with switch start chokes but the arc voltage is harder to find. Of course you can measure it but probably best to use the stated values for calculations.