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??![Crying :cry: :cry:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
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??