Step down voltage

[ThomasD]

Does the Cybertruck use a 12 volt step down voltage limiter for the lights? If so can you easily tap into it to add things like more lights like Emergency Lights and Strobe lights?

 

[vcor]

As far as I'm aware, everything is 48v and there are no 12v step-downs internal to the Cybertruck. Now LEDs typically run at 3V but are often strung in series for a higher voltage and then current limited with electronics (or in cheap designs, resistors). You can buy step-down and/or current limiters that work on 48v to give you 24v or 12v, the most common voltages used in light strips.

 

[Watts_Up]

There is a 48V plug on the toof, like for apolice cars. But I am not aware if there is a switch for it.

 

[blue y]

I'm going to guess there is a fairly low power 12v output for the trailer connection. No idea what it's rated at, but its definitely not 48v powering trailer lights and the always on trailer pin.

ETA from the youtube video that reveals the owners manual (not on tesla.com yet):

 

[vcor]

There is a 48V plug on the toof, like for apolice cars. But I am not aware if there is a switch for it.

Both the roof and frunk 48V connections (400W) are each switchable on/off from the cabin display.

 

[vcor]

I'm going to guess there is a fairly low power 12v output for the trailer connection. No idea what it's rated at, but its definitely not 48v powering trailer lights and the always on trailer pin.

Good catch. While it doesn't state 12V, I expect you are right.