SunPower is a leading solar company that produces high-efficiency crystalline silicon solar cells with interdigitated back contact (IBC) technology. SunPower solar cells use SunPower® Maxeon® cell technology, which features a copper foundation that delivers unmatched reliability and durability. SunPower solar cells have achieved a record efficiency of 25.2% in the laboratory, surpassing conventional solar cells. SunPower solar cells are more expensive and complex to produce than conventional solar cells, but they offer higher performance and reliability. Because of its high efficiency and structure, SunPower Cell has been widely used for semi flexible solar panel and customized SMT mini solar panels.
SunPower offers four solar panel lines: M Series, A Series, X Series and E Series. Each line is a monocrystalline cell type, which means that they have a single crystal structure. Monocrystalline cells are more efficient than polycrystalline cells, which have multiple crystals. The four lines differ in the amount of wattage and efficiency they can achieve. According to https://news.energysage.com/sunpower-solar-panels-complete-review/, the efficiency of SunPower solar cells ranges from 21.7% to 22.8%, which is higher than the average efficiency of conventional solar cells. The table below shows the wattage and efficiency of each SunPower solar panel linehttps://www.forbes.com/home-improvement/solar/sunpower-review/.
| Solar Panel Line | Wattage | Efficiency |
| M Series | 420-440 | 21.7% |
| A Series | 400-415 | 22.3% |
| X Series | 350-370 | 22.8% |
| E Series | 320-327 | 20.1% |