What input voltage for RR10 "Savvy" factory lights?

[fyrstormer]

I just bought a RR10 "Savvy", and it came with factory lights. I replaced the stock ESC and motor immediately, but the power supply for the lights is built into the ESC. Does anyone know what voltage they are supplied with? 6V seems likely because that's the stock ESC's BEC voltage, but I'd like to know for sure. I don't have a battery with the correct plug to use with the stock ESC, so I can't power it up and test the lighting voltage without cutting off the stock connector, and I'm not going to do that because I want to be able to resell them as new.

[fyrstormer]

Nothing, huh?

[xwaz]

I remember doing this on a friends bomber after sticking in a Copperhead System. I Soldered the Lights into a standard servo plug and put them in an extra receiver output. The BEC Voltage that powered them on the Stock ESC was 6-7V IIRC and thats whats running it now so it could probably also run on a 7.4V bec. The stock LEDs have faded over time but likely from water rather than voltage. Hope this helps!

[fyrstormer]

Originally Posted by xwaz

I remember doing this on a friends bomber after sticking in a Copperhead System. I Soldered the Lights into a standard servo plug and put them in an extra receiver output. The BEC Voltage that powered them on the Stock ESC was 6-7V IIRC and thats whats running it now so it could probably also run on a 7.4V bec. The stock LEDs have faded over time but likely from water rather than voltage. Hope this helps!

6V does seem plausible, because why would they build in a second voltage regulator just for the lights? I just wanted to make sure so I wouldn't let the magic smoke out. Thanks.

[xwaz]

Originally Posted by fyrstormer

6V does seem plausible, because why would they build in a second voltage regulator just for the lights? I just wanted to make sure so I wouldn't let the magic smoke out. Thanks.

If your ESC is gonna run a BEC of 7.4 it should be fine as well, I just bought a used bomber and the lights are hooked up through a balance plug for a 2s pack. Which fully charged is 8.4V and they work just fine, so you shouldn't have any issue on the new set up.

[fyrstormer]

Originally Posted by xwaz

If your ESC is gonna run a BEC of 7.4 it should be fine as well, I just bought a used bomber and the lights are hooked up through a balance plug for a 2s pack. Which fully charged is 8.4V and they work just fine, so you shouldn't have any issue on the new set up.

I've built several lighting systems for my scalers in the past. If you do the math, you discover that an increase of 1-2V in a low-voltage power system will have a significant effect on the amount of amperage shoved through a LED, and can quickly cause overheating, especially with LEDs that aren't mounted to heatsinks.