This item Sunpower Flexible Solar Cells E60 C60 5x5 3.6W Monocrystalline Cells for DIY Panels (No Busbars) Sunpower Model C-60 Flexible Solar Cells J3Monocrystalline Super Cells ABOUT THIS ITEM Patented USA technology results in highest efficiency monocrystalline solar cell.Each cell is super light, thin, and flexible, with about 0.6 volts output per cells.Easiest cell assembly by using special dog bone connector with 3 solder points per polarity, per cell.Excellent low light and partial shade performance. Best in class cell longevity without power deterioration. Product informationBrandSunpowerMaterialMonocrystalline SiliconEfficiencyHigh EfficiencyConnector TypeSolderMaximum Voltage0.6 VoltsMaximum Power3.6 WattsManufacturerSunpower Energy Advantage SunPower panels deliver the highest energy per rated watt compared to a Conventional Panel. (Photon International, Mar 2013, out of 151 panels tested). • No Light-Induced Degradation = 2 - 3% more energy. • No Temperature Coefficient = 1 - 2% more energy at 35-40°C ambient temperature. • Low Light and Broad Spectral Response = up to 1% more energy in overcast and low-light conditions Durability Advantage The Maxeon cell has strength and durability to survive extreme conditions year after year, enabling SunPower to provide superior, long-term performance in a broad range of applications. • Corrosion Resistance: SunPower’s tin-copper metal system is more corrosion resistant compared to the porous metal paste used in Conventional Cells, which can crack more easily and corrode. • Crack Resistance: SunPower’s cells are thinner and more flexible than Conventional Cells. When a SunPower cell does crack, the backside copper metal foundation keeps the cell intact and maintains a high power output. When Conventional Cells crack, the cell breaks apart with typically a significant loss of power • Eco-Friendly: SunPower cells solder to lead-free components and are RoHS compliant. Conventional Cells often require components with lead. These are "the best" solar cells, unbelievably better compared to the rigid cells. If you've worked with the regular mono or poly cells out of China, just think about how many you've broken! Or the headache of welding the backs of the cells in long strips. Another point that makes Sunpower so special - they (a) perform better in low light, and (b) pass current from other cells in the same series through a poorly lit cell with less resistance. This means you can avoid the use of diodes if you want (even altogether), and harvest more power in poor lighting conditions. One more point - the voltage generated per cell is twice that of traditional wafers, so you can build smaller usable panels. And did we mention that they are bendable up to 30°, very easy to solder and connect, especially by using the "dog bone" bars that you can add to the cell purchase right here on this listing, put out the best power even under poor light conditions - and we do our part to make sure you get them FAST and perfect with never a crack or a chip!