Round panel clip for 3mm LEDs secures and center the LED into the panel. Available in either black or clear transparent color. Mounts in a Ø0.171” (Ø4.34mm) panel hole with a panel thickness of 0.031” (0.8mm). Easy to mount insert through panel hole, slide retainer (order separately) on the back of the lens. PCB mounted LEDs slide into lens when the panel cover is closed or the PCB card is inserted into the case.