Adapters for mounting the T5-style LED shop light tubes (available from Amazon/eBay/etc) to wood and steel ceilings. Takes a 22lb female threaded magnet with a M6 screw from Amazon (B0BBFTXRYC).

I created these because I needed to temporarily add bright lights to a school bus while I worked on it and the cheap LED tubes fit the bill well, however these would also work great for attaching them to a steel pole barn/shop ceiling. The 22lb magnets are strong enough on the bus ceiling to hold these going down the road no problem, but also great for much thinner steel ceiling panels.