... the switch shouldcontrol the controller is optional; Batteries: General for lead-acid batteries, small micro-system, can also be used nickel metal ... , 24VDC, 48VDC. In order to 220VAC to provide electrical power, solar power generation system will need to be issued by the DC can ... iron tempered glass 2) anti-aging EVA and high flame resistant TPT to laminate 3) high efficiency, long service life, easy ...