Our magnetic LED tube mounts are great for mounting Astera Titan and Nanlite PavoTube LED tubes to steel surfaces. The mounts are magnetic but can be used on non-magnetic surfaces by using either generic "Command" tape or 3M VHB tape. The Command-style tape is usually adequate for most situations and won't harm delicate surfaces. The VHB tape has more holding power but is harder to apply and remove. Both tapes are a couple millimeters thick which makes them conformable to rough or non-smooth surfaces and have good holding power. The video below gives a bit of a deeper dive on the two tapes.
Links:
Nine Volt LED Tube Mount
Generic "Command" Tape
3M VHB Tape