10W 18V Polycrystalline Glass laminated Solar Panel Rear Junction Box (for 12V Solar Generator System) Specifications:Model:P-15Pm:10WVmp:18VImp:0.83AVoc:21.24vIsc:0.81ACells Chip Type: Polycrystalline CellsCells Chip Grade: A ClassCells Chip Efficiency: 19%Test Condition: AM1.5 1000W/m² 25в„ѓ  Frame Material: Aluminum AlloyFrame Color: Black, silverSize of Panel: 465 X 295 X 25 mmWeight: Approx. 1680g Features:-Glass laminated process & Aluminum alloy frame, very durable.-Resistant to harsh environment, good waterproof performance IP65.-A-Class Polycrystalline cells with high conversion rate of 19%-Well packaging with sponge to protect the glass.-Can be run in in parallel or in series to get higher wattage.-Applicable in the roof of house,caravan, boat, motorcycle, lampstand,etc. Package Includes:1x Glass laminated Polycrystalline Solar Panel1x Junction Box Mounting in the back side (without cable) Note: -This is a panel without a controller. (A controller is used for protect the whole solar system especially the battery and the electrical appliance, over-charged, over-voltage protection, for example. So it`s needed to get a controller especially if your each is over 50W, This Panel is 10W, so it`s OK without a controller.)-Though the panel can be run in parallel or in series-The main parameter is test under a ideal condition of AM1.5 1000W/m² 25в„ѓ, So please know that the actual output will be depend on the actual environment you used the panel. Usually, the output is hard to be equal to the ideal output, but it`s closed to it when the condition is closed to the ideal one.-This is a panel with Vpmax of 18V, and due to the point above, the actual output voltage is usually 13~15V, so it`s suitable for a 12V solar system (system with one 12V Storage battery or the 12V cars system.)