Condenser Coil: The condenser coil releases the heat absorbed from the cooler's interior into the surrounding air. It is typically made of copper tubing with aluminum fins. Oylus Ice Maker, Clear Square Ice Cube Maker, Large Clear Ice Cube Maker, Industrial Ice Cube Maker,Cube Ice Maker Countertop. Tube Ice: Hollow cylinder type ice tubes or solid type without hole used in beverages and cooling. The product will supply to all over the world, such as Europe, America, Australia,Colombia, Rotterdam,Cannes, Israel.3.Battery: there are mainly two types of battery in the solar system. One is cheap one, lead batteries, this one is cheap but can’t last long, another is lithium battery, this one is expensive but it works quite well.