The operation surface has a power button symbol, but the contact point will only be turned on while pushing in a momentary motion. Perfect for computer power switches and more. If you use it as a power button alone, please keep it in the circuit. The illumination is LED, so please remove the current limit resistance. [Specifications] Implementation: Number of Poles: 2 Poles Movement Function: OFF-(ON) Number of LEDs: 1 Illumination Type: LED Operation Part Shape: Round Operation Part Color: Silver LED Color: Blue Operation Part Display: Yes Terminal Part Shape: Body Color: Silver