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Features of product: 1. *2/*4V auto recognition, *0A rated charging current. 2. Advanced maximum power point tracking technology to optimize using the solar system. 3. Widely used, automatic recognize day/night. 4. Timer function with ***5 hours option for street light 5. Two load outputs. Each load can be individually controlled, and enhance the flexibility of the system. 6. Sealed, Gel and Flooded battery option. 7. Adopting temperature compensation and correcting the charging and discharging parameters automatically, improving the battery lifetime. 8. Electronic protection: Over charging, over discharging, overload, short circuit, and reverse polarity of both solar module(s) and battery. 9. RJ*5 interface with remote meter MT*2, convenient to check operating parameters of controllers. The TRACER series controller is for off-grid solar system and control the charging and discharging of the battery. The controller features a smart tracking algorithm inside that maximizes the energy from the solar PV module and charge the battery. At the same time, the low voltage disconnect function (LVD) will prevent the battery damage from battery over discharging. The TRACER controller charging process has been optimized for long battery life and improved system performance. The comprehensive self-diagnostics and electronic protection functions can prevent damage from installation mistakes or system faults. In addition, the TRACER controller has a RJ*5 interface to allow communication with a meter for remote monitoring. Although the TRACER controller is very simple to configure and use, please take your time to read the operator's manual and become familiar with the controller. This will help you make full use of all the functions and improve your solar PV system. MPPT Technology: The TRACER utilizes Maximum Power Point Tracking technology to extract maximum power from the solar module. The tracking algorithm is fully automatic and does not require user adjustment, TRACER technology will track the array maximum power point voltage (Vmp) as it varies with weather conditions, ensuring that maximum power is harvested from the array through the course of the day. Technical Specifications: Nominal system voltage *2VDC or *4VDC Rated battery current *0A Battery voltage range ***6V Max. Solar voltage TRACER ***6 *0VDC TRACER ***0 **0VDC TRACER ***5 **0VDC Max. PV power *2V/ **0W *4V /**0W Self-consumption *6mA RJ*5 connection 8pin Load surge protect *5A Ambient temperature range **5 º Cto **5º C Storage temperature **5º C to **0º C Humidity *0%**0%(NC) Enclosure IP*0(Indoor) Dimension **0(6.**9)x*7(3.**8)x*7(1.*5)/mm(inches) Mounting holes **0(5.**5)x*0(2.**5)/mm(inches) Weight 0.*5kg