1w solar panel use in solar lighting, solar charger(system) mono or poly:1W to 300W certificate: CE ROHS solar panel specificationsize: 140*100*18mmcell: poly 156*156mmNo. of cells ... , with diode protectionSuperiority: high quality anodexed aluminum frame, high efficiency long life, easy installation, strong wind resistance, strong hail resisance.solar panel warranty: power is ...