HUINETUL 12V 24V 20A IP68 Waterproof Solar Charge Controller Lithium ion Lifepo4 Lead-Acid Battery Regulator with IR Remote Controller IP68 waterproof grade, it can be used for outdoor solar system, made with premium aluminum alloy shell, with cables/heat sink/4pcs mounting holes. Can fits for 3 types of batteries, you can use it to charge 3S/6S lithium ion battery, 4S/8S lifepo4 battery and all kinds of lead acid batteries.(Flooded Sealed, AGM or GEL) With IR remote control, the remote distance is about 4M to 5M, offer several working mode for your choice, it has 24hr working mode, Dust to dawn working mode, and you also can set the working hours for load based on dust to dawn working mode, then can meets your specific using demand Can be used for both 12V and 24V solar system, it can senses if it?s 12V or 24V automatically after activated by enough voltage battery. Default battery type is for lead acid. After you choose battery type by remote control, the voltage will changes to match your connected battery (like11.1V/12.8V/22.2V/25.6V), with power-off memory function With 4pcs LED lights to help you know the working status of the controller, has all the necessary protection: short circuit protection, reverse protection, over charging protection and over load protection. Fully 4-stage PWM charge management. ? Safety Instructions: A) Make sure your battery has enough voltage for the controller to recognize the battery type before first installation. Too low or dead voltage battery won?t activate the solar charge controller B) The solar charge controller can be charged for lead acid batteries (Sealed, Flooded, AGM, GEL),3S or 6S lithium ion and 4S or 8S lifepo4 batteries, but you need to confirm battery type as quick as possible after controller is activated. Suggest to set battery type and working mode by standing as close as possible to the controller C) The battery cable should be as short as possible to minimize loss D) The solar charge controller is only suitable for regulating solar panels. Never connect another charging source to the charge controller E) Please keep it in cool and well-ventilated place to maintain good heat dissipation ? How to connect solar system with the controller: Step 1: Connect the battery to the solar charge controller firstly- plus and minus Step 2: Connect the load to the controller secondly. Step 3: Connect the solar panel to the controller finally - plus and minus. ? NOTE: The reverse order applies when deinstalling. ? Specification: Color: Black Rated Charging/ Discharging Current:20A Max Solar Input Voltage: ?50V System Voltage: 11.1V/12V/12.8V/22.2V/24V/25.6V after setting by IR remote control (there is a thin plastic sheet in the remote control, pls pull it out when use) Self consume: ?10mA Float Charging: 12.3V/13.8V/14V/24.6V/27.6V/28V Discharge Reconnect Voltage: 10.5V/12.6V/12V/21V/25.2V/24V Discharge Stop Voltage: 9.3V/11.2V/11.2V/18.6V/22.4V/22.4V Operating Temperature:-20?~+60? Material: Aluminum alloy Maximum Wire Size:16AWG Size/Weight: 82x58x21mm/135g ? Package Include: 1x 20A waterproof solar charge controller 1x Remote control 1x User Manual Shipping We offer FREE shipping on all orders in US We ship within One-Three business days of payment, usually sooner. We use a selection of shipping services such as UPS, FedEx, USPS etc We offer free shipping to the lower 48 states and ship within 1-3 days of payment, usually sooner. 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