Light setup not working

I just wired up a ubec and turnigy on/off switch connected to four 5v laser diodes (4mw). I followed all of the instructions with the ubec into pixhawk main out 5 and the on/off switch into aux 3 (rc11). I also programmed the radio to use channel 8. The commands show up on radio calibration and setup ch8 for relay on/off on the tuning screen. I also tested the switch jumpers for switch on but i cant get lights to turn on. I used super thin 24awg wire for the lights - ok for 5v i assume? And are the lights too much for one ubec?

these are the ones i am using … EBIDX%3AIT

thanks in advance.

Well, what’s the configuration here. This should work and without issues. Did you check that the relay port is actually changing from 0v to 3.3v. Does the relay you are using trigger on only 3.3 volts.

I use a simple MOSFET as my relay device and switch a larger load than that with no issues.