Power Solid Solar Panel 640W HJT cell technology (Heterojunction) PS640W#BHPVS Data Sheet Features >> SMBB Half Cell : Multi-busbar half-cell design, higher module efficiency and power output >> G10 Cell / Module : G10 size wafer, applicable to multiple scenarios >> Higher Performance : Lower temperature coefficient and low operation temperature resulting in better energy yield in all-weather >>High Energy Yield : Maximum Module Efficiency up to 22.90% achieved by mature mass production HJT cell technology >> High Reliability : Certified mechanical performance up to 5400 Pa positive load and 2400 Pa negative load, with better protection against harsh weather >> Better Warranty : Extremely low LID/PID in longer service life, less than12.6% power degradation in 30 years