(0.38 +/-0.01)%/. Temperate coefficient of power Voc. 90% within 10 years, 80 within 25 years. Kind of glass and its thickness.Low Iron, high transparency tempered glass of 3.2mm. Dimensions :(L x W x H)mm. 100066535mm26.2"x39.4"x1.4. The item "800W Solar Panel Well Water Pump kit Large Scale Watering System Farm Irrigation" is in sale since Monday, March 12, 2018. This item is in the category "Home & Garden\Home Improvement\Electrical Supplies\Alternative Energy Supplies\Solar Power Supplies\Solar Water Pumps & Kits". The seller is "quasolar" and is located in Rosemead, California. This item can be shipped worldwide.