Holder for steppdown unit 24v dc > 12v dc for led light

I want some more light on the printer bed to my Flash forge printer, In the printer there is only 24V so I get a step down converter from 24V to 12V for my new led light. Then I made this holder for the step-down unit. The stepdownunit I found on Ebay " 24V 15V-35V to 12V DC-DC Power Supply Buck Converter "
You can mount the holder with double sided tape or with screws in bottom of the printer.