All metal shell design, with super stability and long service life. solar controller 12v IP65 waterproof class, waterproof more heat dissipation. solar charge controller Improved charging (+PWM), charging faster. solar regulator charge controller Easy installation and easy operation. solar panel controller Comprehensive protection: Provides overcharge, overdischarge, overload protection, and short circuit and reverse connection protection. solar generator Description: This solar charge controller automatically manages and regulates the voltage and current going into the from the solar panel, and it's designed with short-circuit protection, open-circuit protection, reverse polarity protection and over-load protection in order to that the batteries are not overcharged. solar controller Specification: Voltage:Opening: 12V/24V Lithium iron phosphate:3.2V (4-6s) Rated charging current:5A/10A/15A/20A Solar open-circuit voltage:Less than 55V Light control open voltage: 12V-5V/24V-10V Light voltage:12V-7V/24V-14V. Working temperature:-35℃-65℃. Waterproof:IP65 Size:11 x 6 x 3.2 cm/4.3 x 2.4 x 1.26 inch. Suitable for lithium iron phosphate battery Color:Black Material:Metal+Plastic Package Contents: 1 * 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.