Model SRDH120 Solar Charge Controller 12V 24V 20A with Wireless LED Dimming and Stepup LED Driver IP67 Overview Model SRDH120 is a 12V/24V, 20A solar charge controller designed for solar street lighting. It combines constantcurrent LED driving, intelligent wireless dimming, and an integrated stepup LED driver in an IP67rated housing. The unit is built to simplify installation, maintain stable LED output, and extend system runtime through dimming and efficient load control. Key benefits Support for 12V and 24V systems: Works with common offgrid battery systems for flexible deployment. 20A capacity: Handles moderate solar street lighting loads without oversizing the controller. Constantcurrent LED output: Keeps LED lamps at stable brightness to protect LEDs from current fluctuations and to maintain consistent light levels. Integrated stepup LED driver: Allows driving LED fixtures with higher forward voltage than the battery system, reducing the need for separate drivers and simplifying wiring. Intelligent wireless dimming: Remote dimming capability enables automatic or manual brightness adjustment to save energy during lowtraffic periods and extend battery life. IP67rated enclosure: Weatherresistant design suitable for outdoor use and exposure to dust and rain. Compact form and straightforward connections: Designed for pole or cabinetmounting where space is limited. Functions and compatibility Primary functions: solar battery charging, battery and load management, constantcurrent LED driving, wireless dimming control, and stepup voltage conversion for LED loads. Compatibility: Designed for use with common 12V or 24V solar arrays, leadacid and lithium battery systems (as configured by installer), and a wide range of LED street light fixtures that require constantcurrent drive or higher forward voltage. Performance focus: Stable LED current output, reliable load control through dimming, and consolidated driver and controller functionality to reduce system components. Practical applications Solar street lighting for residential roads and rural routes where wireless dimming lets you lower brightness overnight to conserve battery power. Offgrid parking lot and pathway lighting where the stepup LED driver enables use of highervoltage LED fixtures off a 12V or 24V battery bank. Small community or campus solar lighting projects that need a compact, weatherresistant controller combining charging and LED drive functions. Why choose this controller This model brings multiple functions into a single device to reduce component count and simplify installation. Its constantcurrent LED output and stepup driver improve compatibility with various LED fixtures while wireless dimming helps optimize energy use and extend battery runtime. The IP67 enclosure makes it suitable for outdoor installations where reliable, consistent lighting is required. Key specifications at a glance Model: SRDH120 System voltage: 12V/24V Rated current: 20A Main features: intelligent wireless LED dimming, constantcurrent LED output, integrated stepup LED driver Protection rating: IP67 Installation and operation notes Intended for use by qualified installers familiar with solar charging and LED wiring. Confirm battery chemistry and system settings before commissioning. Follow standard wiring practices and local electrical codes during installation.