Our 3300 Coin Timer Box with ATV-3 Timer is our most popular timing device for kiddie rides. It is also used for tanning beds, tennis court & pool table lighting control, showers, washer & dryers, turnstiles, exercise equipment, air conditioners and space heaters. The ATV-3 Timer is a self contained timing device that is dipswitch controlled and has a built in relay. Available in 12V DC, 24V AC or DC, and 115V AC. Available in a wide range of time settings, from seconds & minutes to minutes & hours. Watch our youtube video on this product: www.youtube.com/watch?v=gbwSUTAmGZk