SL03 series controllers are kinds of intelligent multifunctional solar charge and discharge controller. This series adopt the new 32bit microprocessor to collect and compute various parameters, which is much more accurate and speedy than the former 8bit microprocessor. The customized LCD with wide temperature range is with vivid operation interface; the latest proprietary technology solves the problem of voltage display of solar panel. Nearly all parameters can be shown and set up flexibly. All of the multi-meter and other voltage and current instruments can be replaced by this controller, which can satisfy your various demands.Features:Flame resistant plastic housing, durable and safe to use.Data collection by 32bit microprocessor with 4096 resolution ratio is much more accurate than the former 8bit microprocessor with 1024 resolution ratio.The voltage of solar panel can be shown and checked.The results and states of each monitoring parameters can be automatically showed by turns (automatic scanning).Light-operated sensitivity is set flexibility which can recognize day and night reliably according to the voltage of solar panel.Floating charge voltage can also be set, which can be especially applied to charge and discharge at the same time, controlling the voltage of battery flexibly.The charge-discharge parameters of wide range can be adjusted flexibly, which is suitable for various kinds of battery, such as lithium battery. The old and new battery can all be applied to.Automatic temperature compensation and adjustable compensating parameter, for example, the lithium battery can choose the closing temperature compensation.LCD display screen with wide temperature range is with visual graphic symbol display.The protected USB5V voltage-stabilized source output, for other 5V load like mobile phone charging that compatible USB. The energy consumption will automatically reduce when non-loaded, we don't need to control it by hand switch, realizing the plug and play.Specification:Condition: 100% Brand NewHousing Material: PlasticType: SL03-20A, SL03-30A (optional)Max Charge Current: 20A, 30A (optional)Max Load Current: 20A, 30A (optional)Max Voltage of Solar Panel: <=50VWork Voltage: 12V/24V Auto DiscriminatingStop Charge Voltage: Default 14.4V/28.8V (Can Set 9V-35V)Float Charge Voltage: Default 13.6V/27.2V (Can Set 9V-35V)Low Voltage Reconnected: Default 12.4V/24.8V (Can Set 9V-35V)Low Voltage Disconnection: Default 10.8V/21.6V (Can Set 9V-35V)No Load: <=15mAOver-load and Short Circuit: 1.1 times of max current, works for 5 seconds or short circuit, the load is off at once and the indicator icon flashing. Then wait for 30 seconds, it will automatically restart to work.Note: +(T) telecommunication monitoring function (The function needs to WINCONG order)Size: Approx. 14.3*7.5*3 cm / 5.6*3*1.2 inWeight: Approx. 245g / 8.6 ozPackage list:1 * Solar Controller1 * User Manual