400W/410W/420W all-black monocrystalline silicon solar panels  

420W monocrystalline silicon solar panel, full range of power can be customized all black Linear Performance Warranty 12 Year Product Warranty 25 Year Linear Power Supply Warranty 0.55% downgrade per year over 25 years Specification Model RSM540-144HC RSM545-144HC RSM550-144HC RSM555-144HC…