... ROHS certificated 3)Mono or poly crystalline silicon Mono Crystalline Silicon Solar Panel 300WP Main Parameters Electrical CharacteristicsDHCZ300M- ... a separate package;Advantages1, We have high efficiency silicon solar cell sheet.2, We have 2 bypass and 2 ... convenient installation.7, Structural characteristics of mono-crystalline silicon solar cell series parallel, with high strength and low iron ...