Light sensor

A light sensor is a device that activates when it detects light. They may only activate when subject to a particular amount of light or light from a particular source.

=In fanon games=

In Pikmin Forever
Light sensors are obstacles in Pikmin Forever that detect certain frequencies of light and activate moving devices if they sense enough of it. Normally, a module is embedded in a wall near machinery, and having enough Mushroom Pikmin near it will activate it. Light sensors can require ten to thirty Mushroom Pikmin and do not register light from the leaders' beacons. Light sensors only appear underground, since Mushroom Pikmin caps only glow underground.