[100A SOLAR CHARGE CONTRALLER] Solar Charge controller compatibility for 12V and 24V system, Advanced maximum power point tracking (PWM) technology can improve efficiency by 10%-30%. [MULTIPLE INTELLIGENT PROTECTION] Built-in overcurrent protection, short circuit protection, reverse connection protection, open circuit protection, all automatic recovery, no damage to the controller, a reliable protector for your devices [LARGE LCD SCREEN] Easy to install and operate, Intuitive LCD display that can clearly indicate the status and data is able to switch modes and parameter configuration, The level of complete power-off is adjustable, which can perfectly protect the lithium battery from over-discharge, suitable for home, industrial, commercial etc [PLEASE NOTE] The solar controller is only suitable for lead-acid batteries: OPEN, AGM, GEL, not suitable for nickel metal hydride, lithium ions or other batteries. The built-in industrial Mini controller can automatically manage the work of solar panel and battery to charge [WIDELY APPLICABLE] Solar panel suitable for solar power system, solar street lamp, smart home, solar light box, intelligent irrigation, camping lantern, for home, industrial, commercial etc Material: plastic colour: blue Package Contents: 4 x Solar Charge Controller Only 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.