DIY option to add LED indication under guitar pedal footswitch pedal washer. Drill 15mm holes for footswitch, put LED ring inside enslosure where lock washer would normally go, add thin clear vinyl washer for insulation; LEDs should shine through white nylon washer on top. Order on Flex to get LED Indicator ring with flexible lead extensions–trim to your needs. Eliminates running wires through enclosure space to power LEDs. (Prototype, Unverified).