This is an IR LED lens holder for 5mm IR LEDs and 20mm 90 degree lenses. For use with Lichtknarre (Print 4 of these), Dolphin/Wii (Print 2) Batocera Print 1

I use 5v from usb with 22Ω resistors on each LED but you will need to look up the specifications for your specific LEDs and power them appropriately. The lenses used were these from Ebay

There are versions with and without holes for routing cables. Attach to TV using temporary adhesive such as velcro, double sided tape or blutak.

Print with whatever settings seem comfortable, they shouldn't take much strain.