Kit makes a 0-30 volt 3 amp Variable DC Power Regulator.

Kit makes a 0-12 volt output DC Pulse width motor controller. 20 Watt.

Kit makes a Voice Activated Switch with a delay off from 1-60 seconds.

Kit makes a 12 step adjustable timer switch circuit. 0-10 hours Control devices from 1-220 Volts AC or DC

Kit makes an adjustable timer switch circuit. 0-3 hours Control devices from 1-220 Volts AC or DC

Kit makes a touch activated switch.

Kit makes a Dark activated switch.

Kit makes a Dark activated switch.

Kit makes a light activated remote control switch.

Kit makes a light activated switch. Turns on when light shines on sensor

Kit has three buttons and and three LEDs. The first buttom pushed will light that LED and "lock out" the other two. Like on a game show see details

Kit makes a 3 volt bulb Flash like a firefly at night. Adjustable flashing rate with potentiometer. see details