This set of new 6"x6" solar cells are mono crystalline cells made by an American solar company that has produced solar products in the United States for decades. Mono crystalline solar cells are made from mono ingots / wafers which produce the highest efficiency silicon solar cells on the market today. These solar cells have never been used, and they are not de-soldered from failed panels and strings, so you can start from a clean slate, which is good for soldering. The power output is between 3.9 watts to 4.1 watts per cell, guaranteed! DIY KIT Technical Data: I. Cells: 80 pieces The standard cell specifications are the following, though the individual cells can be above or below these standards. Cell Specifications: Rated power : 3.9 - 4.1 Wp Open circuit voltage: 0.610v -0.621v Short circuit current: 5.91 amp -6.12 amp Operating voltage: 0.519 v - 0.528 v Operating current: 5.02 amp - 5.22 amp Dimension: nearly 6 inches by 6 inches or 156mm by 156mm Weight: Just above 6 grams, or 0.2 oz. II: Tabbing wires: $50 value - 240 feet of tabbing wires to connect the solar cells. Cut them into 6 inch sections to solder onto the bus bars on the cells. III: Bus wires: $25 value - 24 feet of bus wires. Use them to connect them between the series and connect the tabbing wires ends to the junction box at the back of the panel. IV: Flux: $7-$9 value - an easy-to-use flux pen that dispenses flux onto the bus bar or your tabbing wires without leaving a mess. It's used to aid soldering and bonding of the wires to the cells. A must have item. V: Diodes: $3 value - 2 diodes rated at 15 amp. Schottky style diodes.
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