You need a switch that tells you it's been pressed. Not a guess, not a blink you might miss in a dark cabinet. This Jaycar SPST tactile switch has a red LED built in. 3.5–4V DC at 25mA. Solder it onto your board, vertical orientation, and the light confirms every single press. Green (SP0621) and blue (SP0622) versions available if your panel calls for them
| brand | Jaycar |
| type | SPST Momentary Tactile Switch with LED |
| led_colour | Red |
| led_power_supply | 3.5–4V DC @ 25mA |
| contact_configuration | Normally Open (NO) |
| mounting | PCB Mount – Vertical |
| category | Electronics & Components |
| subcategory | Electronic Components |
