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Topic: Backlight from LCD monitor: may I use it with Arduino ? (Read 744 times) previous topic - next topic

amundsen

Hello,

I got this narrow double tube light which was used as backlight for an LCD monitor. I see no reference written on it. It's around 40 cm long. There is one plug for each tube (please see attached images).

May I use it with Arduino ? Should I add other components ? How ?

Thank you in advance.

mmcp42

if it's anything like the (very similar looking) tubes in a scanner - it needs a very high voltage to start it
think flourescent tube!!
there are only 10 types of people
them that understands binary
and them that doesn't

amundsen

So I would need a relay and an independant power source ? Any idea of the voltage/current needed ?

mmcp42

easiest is to take an old laptop to pieces, or harvest from a scanner
from (rusty) memory - kV to strike, then just (!) 2-300 volts to maintain

do NOT connect to your Arduino!!!
there are only 10 types of people
them that understands binary
and them that doesn't

elandd2011

for this you need high voltage power inverter
you need something like this

amundsen

Thanks guys ! It seems a bit complex to use this spare part. I think I'd better use regular leds...

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