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geoff

In message , writes
On 1 Feb,
geoff wrote:

How much longer will a filament lamp last at 50% it's rated voltage ?

From experience of using two in series in a past life, I'd say for ever,
unless they were 15w pigmy.

S'wot I was thinking

I used to use pigmys as loads for soak tests and found that even they
lasted almost forever when run at lower voltages

--
geoff