IP68 waterproof rating, can be used for outdoor solar system, with high-quality aluminum alloy shell, equipped with cable/radiator/4 mounting holes. Can accommodate 3 types of batteries, you can use it to charge lithium-ion batteries, iron-lithium batteries and lead-acid batteries. With infrared remote control, the remote control distance is about 4M to 5M, providing multiple working modes to choose, it has 24-hour working mode, from dawn to dusk working mode, you can also set the working time of the load according to the dawn to dusk working mode, then it can meet your specific usage needs Can be used for 12V and 24V solar systems, when the battery voltage is enough, it can automatically sense whether it is 12V or 24V. The default battery type is lead-acid. After selecting the battery type through the remote control, the voltage change according to the connected battery, with power-off memory function With 4 LED lights to help you understand the working status of the controller, with all necessary protection functions: short circuit protection, reverse protection, overcharge protection and overload protection. Full 4-level PWM charging management. Colour:As Shown Material:Aluminum Alloy Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 1 * Solar controller 1 * Remote 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.