As in previous threads, my outdoor LED light strings mostly fail during the winter season. Only about 1/3 remain lit after about 4 months. Last year, I filled each socket with silicone paste to no avail.
I chose the socketed ones so that I can make them multi-colored.
I see no other option but to cut them apart and rewire each LED in parallel and use a low voltage DC power supply. Strings of 50 lites would be ideal for me.
Since adding a resistor for each LED would be rather tedious, the hope is to power entire the string at the right voltage. This is where I need help.
5 volt USB power supplies are fairly cheap and easy to come by but are to high for the LEDs. Maybe I could use them with one 2 or 3 watt resistor.
No, a resistor is used simply as a crude 'constant' current source - but a constant current source will most likely include a resistor to monitor the current, just a far lower value one.
No, a resistor is used simply as a crude 'constant' current source - but a constant current source will most likely include a resistor to monitor the current, just a far lower value one.
Mainly as an example, but with constant current it doesn't matter - the current will simply be shared among the LED's (assuming they are all identical), regardless of how many there are. As it comes it's set to 600mA, but it gives instructions on how to alter it to 1A.
Flexible Silicone Wire Cable. Colours available. Can be used continuously at temperatures up to 200 °C (392 °F) Resistant to many solvents / lubricants / chemicals etc. You may also be interested in 100m of Silicone Cable.
www.ebay.com
To help, do you think I could reduce the ground wire to a #20?
Flexible Silicone Wire Cable. Colours available. Can be used continuously at temperatures up to 200 °C (392 °F) Resistant to many solvents / lubricants / chemicals etc. You may also be interested in 100m of Silicone Cable.
www.ebay.com
To help, do you think I could reduce the ground wire to a #20?
The #20 wire is 0.5 mm2. I wouldn't run that at the 11 A that the ebay listing quotes, but up to 5 A would be fine. The current will depend on how many LED strings are in parallel.