Check the listing for details. Newpowa 40A MPPT 12V/24V Auto Switch Battery Regulator Charge Controller. Condition: New. Listed at 195.99 USD. Newpowa 40A MPPT SOLAR CHARGE CONTROLLER Newpowa 40 Amp MPPT Charge Controller applied Advanced Maximum Power Point Tracking (MPPT) technology to help regulate the power from your solar panel to battery with efficiency no less than 99.5%. This 40 Amp MPPT solar regulator adopts high quality components with maximum conversion efficiency of 98%. The MPPT battery charging can greatly increase the lifetime of your battery and has various unique functions and quite easy to use features. Features:Advanced technology with efficiency no less than 99.5%Maximum conversion efficiency of 98%Ultra-fast tracking speed and guaranteed tracking efficiencyAccurately recognizing and tracking of multiple power pointsWide MPP operating voltage rangeSupport 4 charging options: Sealed, Gel, Flooded and UserBattery temperature compensation functionSpecification Rated Current: 40A System Voltage: 12V/24V(Auto) Rated discharge current: 20A Battery voltage range: 8V— 32V Max.PV open circuit voltage : 150V/138V MPP voltage range: Battery voltage +2V—108V Max.PV input power: 520W(12V),1040W(24V) Self-consumption: ≤60mA(12V); ≤30mA(24V) Working Temperatyre: -35℃— 55℃ Storage Temperature: -35℃— 80℃ Humidity: ≤95%（N.C.） Dimension(L*W*H)(mm): 302.5*182.7*63.5 Net Weight(Approx.): 2.9Kg/6.4Lbs Shipping Policy: Newpowa-Solar offers free shipping for all domestic (lower 48 states) orders. Your order will be shipped within 1-2 business day once the payment is received. Please note that we won't be able to process any order with PO Box address for any size of solar panel. Upon shipment a tracking number will be provided for you. Adult Signature Required for deliveries. Solar Controllers Warranty: 24 month limited materials and workmanship warranty Track Page Views With Auctiva's FREE Counter