This is an air conditioner outdoor unit protective cover that cuts heat by approximately 40% with an aluminum effect, and improves electrical efficiency and saves energy. The simple structure of the outdoor unit is able to block direct sunlight in the middle of summer and it can reduce the temperature of the outdoor unit at least 48°F (20°C). When the temperature of the outdoor unit lows, the electric efficiency of the air conditioner on the main unit increases so you can expect energy saving effects.