Sell bottled-water vending lockers all over the world. Functions: This product is called Bottled-water Return Locker/Cage which is used for recycling water bottles. When the customer returns the bottle to the cage, it will output a pre-printed coupon ticket. The customers can get a discount by using the coupons when they buy bottled water again. Working condition: Power: AC110V±15 %( 60Hz) or AC220V±15 %( 50Hz) Temperature: 0℃~45℃ Humidity: 10%~90% Power consumption: ≤30W Features: This cage bin allows for easy return & exchange of your empty 5 gallon bottles up to 36 bottle capacity; High quality Powder Coated steel provides a clean look and protects the unit; Sturdy welded steel knock-down construction; Knock-down structure makes the transportation easier which saves costs; Be composed of multiple independent components which are easy to assembly. Knock-down empty water bottle return locker. Electronic water locker,bottled-water sell machines.