liddley
Newbie level 2
hi all.
Wondered if any one has any suggestions on how to wire up lashing leds?
I have hot glued 2 red flashing leds into my house dummy alarm bell box to imatate a live working alarm. The leds are wired in parallel using the power supply 12v dc from the old alarm that no longer works. But I have tryed to use the transformer in the alarm for a constant 12v dc voltage so I do not have to climb up and change batteries for the leds when they run out. When I tested the leds on the old alrm battery they flashed fine but when connected to the alarm wire which is about 5 meters longe they only just light up and do not flash. Is this due to the extra resistance in te 5meters worth of cable??
Wondered if any one has any suggestions on how to wire up lashing leds?
I have hot glued 2 red flashing leds into my house dummy alarm bell box to imatate a live working alarm. The leds are wired in parallel using the power supply 12v dc from the old alarm that no longer works. But I have tryed to use the transformer in the alarm for a constant 12v dc voltage so I do not have to climb up and change batteries for the leds when they run out. When I tested the leds on the old alrm battery they flashed fine but when connected to the alarm wire which is about 5 meters longe they only just light up and do not flash. Is this due to the extra resistance in te 5meters worth of cable??