Features: Newest Version, it is with upgraded fan insideIntelligent Maximum Power Point Tracking technology.Built-in DSP controller with high performanceThree-stage charging optimizes battery performanceMulti-function LCD displays, Overcharge protectionCan be mounted easily, Suitable for battery types of sealed lead acid, vented Gel, and Lithium battery.Protection class is IP21Can automatically adapt to 12V/24V/36V/48V voltageEnergy conversion rate of up to 95%Protection class is IP21With buttons for easy operationCharging current: 40Asize: 21.4 x 11.5 x 5cmMaterial: ABS+aluminumcolour: silverPackage Contents: 1 x Solar ControllerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.