Aidan Carrigan
- Nov 14, 2016
- 6
- Joined
- Nov 14, 2016
- Messages
- 6
I recently purchased red/green twinkling leds off of eBay and wanted to assemble them into a Christmas light string.They have a forward voltage of 3.0-3.5 and a max current of 30 MA. I had figured 120 v / 3.5 = about 35 bulbs. So I wired them together in series and plugged them in, killing them all almost instantly . Would putting a resistor on each bulb allow them to work off of 120v ac? Or maybe a large resistor inline? If so how would I go about finding which resistors to use? I did make a short string running off of 12 volts with groups of 4 bulbs wired in parallel however I really dislike having to use a power supply for the lights and they are not able to be dimmed when using a power supply. Thanks