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Can I use the USB port to power a LED lamp?  

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Brett
(@brett-3)
New Member
Can I use the USB port to power a LED lamp?

I tried to look for the information in this forum and in prusa documentation, but I cannot find what can be plugged on the USB port - besides USB stick.

Will it be ok to plug a 1-2 watt LED lamp such as this one:

https://www.amazon.com/EBYPHAN-Dimmable-Flexible-Adjustable-Brightness

Or is it a bad idea?

Thanks in advance!

Posted : 25/07/2022 3:08 pm
tedmahsun
(@tedmahsun)
Active Member
RE:

I needed to see my print more clearly one time when I was printing with black filament, so i plugged in a small 5v usb lamp in the socket. I haven't tried something long term though. I still use the port to load my gcodes.

Posted : 28/07/2022 11:57 am
Neophyl
(@neophyl)
Famed Member
RE: Can I use the USB port to power a LED lamp?

According to this schematic the USB is rated for 500ma like most USB ports.

Posted : 28/07/2022 12:41 pm
Jakub K.
(@jakub-k-2)
Active Member
RE: Can I use the USB port to power a LED lamp?

I have been using the led lamp powered by the mini's USB port for months. You have to be careful not to draw more than 500 mA of current from the port, as @neophyl pointed out.

The lamp you posted is rated for 1.2 watts and the USB port is 5 volts. Therefore it will draw ~240 mA of current => you should be safe to use this lamp 👍

Posted : 09/08/2022 6:57 am
Brett
(@brett-3)
New Member
Topic starter answered:
RE: Can I use the USB port to power a LED lamp?

Thanks for all your answer. Depending on the final led solution (the one I posted may not be the final), I know that I could use the USB port.

 

Posted : 09/08/2022 7:03 am
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