Homemade AC Air Cooling unit produces very cold air. 42F air (in an 80F room). items needed: ice chest (hard-sided or styrofoam), pvc pipe, small fan and ice. (small solar panel is optional). great for space cooling. 3 ways to power it: a solar panel, a battery or an automobile (using 12v socket “cig. plug”). this air cooler combines the durability of the “5 Gallon bucket air cooler” with the extra cooling power of the “styrofoam ice chest air cooler”. specs: fan: 12VDC 10w 0.8A. solar panel: 15 watt (1 amp). works best in semi-dry or dry climates.