(Monocrystalline solar panels have higher efficiency rate than Polycrystalline solar panels). The panels have a tempered glass front for great resistance against knocks and hail, maximum surface pressure is 200 kg/m². Dimensions of the panel are 235mm x 335mm. Regulators are an important feature. To have on a solar panel, as the name suggests they regulate the power going into your battery to an acceptable voltage level of around 13.8 V instead of the 17 to 21 V coming straight out of the solar panel.
They also prevent overcharging of your battery and feedback which can occur at night when there is no sun. 3 years on the regulator and 10 years on the panel. The expected life span of the solar panel is 30 years (80% of cells working after this time).
Perfect for connecting to an infrequently used vehicle, your battery will always be charged without overcharging or damage to your battery. The item "10W 12V SOLAR PANEL & REGULATOR BOSCH GERMAN CELLS BATTERY CHARGER WATT 20 40" is in sale since Sunday, March 30, 2014.This item is in the category "Home & Garden\Building Materials & DIY\Electrical Supplies\Alternative Energy Supplies\Solar Power Supplies\Solar Panels & Kits". The seller is "agwholesalers" and is located in Darling Downs, QLD. This item can be shipped worldwide.