20W 12V Solar Battery Trickle Charger Maintainer, Mono Solar Panel Battery Charger with Built-in MPPT Controller & Adjustable Mount Bracket, IP65

20W 12V Solar Battery Trickle Charger Maintainer, Mono Solar Panel Battery Charger with Built-in MPPT Controller & Adjustable Mount Bracket, IP65 Waterproof for Car Boat RV Trailer House Roof Smart Charging Controller Built to Last Easy to Connect Wide Applications Higher Conversion Efficiency High Compatibility Compatible Battery Voltage: 12V,Solar Panel Dimensions: 15.4 x 13 x 12.6 in / 391 x 330 x 320 mm,Maximum Power: 20W,Solar Cell: Monocrystalline Silicon,Waterproof Rating: IP65,Color: White,Controller Type: Built-in MPPT Controller,Item Model Number: 20W,Surface Material: High-Transparency Tempered Glass,Net Weight: 4.14 lbs / 1.88 kg