SparkFun Concave Button - Red Buttons/Switches Sensors The cell is sensitive to

The cell is sensitive to a wide range of light wavelengths (430-1100nm)

Low-profile electrolytic decoupling capacitors 10uF/25V

we recommend attaching the 3xAA battery pack below

1mm center positive)

We have no idea what USB device you are hooking up to

SparkFun Concave Button - Red Buttons/Switches Sensors The cell is sensitive toThis is a 35mm concave momentary push button similar to the ones you find on arcade games. Simple screw in design. Perfect for mashing. This button has a great tactile, clicky feel. Features: Concave plunger design Durable nylon material Microswitch: max 3A @ 120 VAC Microswitch reliability tested to 10,000,000 cycles Includes 3 terminal microswitch Net weight: 25g Dimensions: Bezel diameter: 32mm Overall height: 65mm Mounting hole: 1 1 8th inch