... day use.•Low voltage protection, over-charge protection, battery status indication, adjustable output voltage, etc.•Durable and ... power efficiency. Product SummaryItem No.SBB12-4.5DescriptionSolar Battery Back-upInput voltageDC18VOutput voltageDC12V-24VOutput voltage adjustableyesApplicable pump itemsBP401209 ... 3300Quantity per 40' container (pcs)6600Warranty1 year Solar Battery Backup (SBB12-4 ...