Infared light for night time
In message , George
writes
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George wrote:
wrote in message
Why use LEDs when filament lamps radiate IR well when run at under
half rated voltage. Producing IR is the filament lamp's forte, or
weakness when you want visible.
NT
Hmmm! yes I can see my electricity bill now. ;-)
ps I don't want to resemble part of blackpool illuminations
unclear how thats relevant here. Filament lamps are about as
efficient as LEDs at IR.
NT
IR Leds will last cosiderably a lot longer than filament bulbs.
How much longer will a filament lamp last at 50% it's rated voltage ?
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geoff
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