Product Features:
1. Integrated MPPT charging control, discharge management and LED lamp beads (referred to as M-COB), making the circuit simpler, production more convenient, and offering higher cost-effectiveness;

2. Utilizing international renowned industrial-grade MCUs with full digital technology, the ADC voltage and current collection is more accurate, the on-off linearity is better, the anti-interference ability is strong, all resistive components adopt international leading brands, the input and output electrolytic capacitors use long-life solid-state capacitors, ensuring no aging or thermal drift issues in the hardware part, and the lifespan is guaranteed;

3. High-efficiency MPPT tracking technology, MPPT tracking efficiency ≥ 99%, system charging conversion efficiency up to 98%;

4. Three-stage MPPT charging management, constant voltage equalization charging, constant voltage floating charging and overcharge protection, significantly extending the service life of the battery;

5. Five-stage discharge management, each period can control the output power differently, based on the adaptive algorithm (ABMS) according to the battery voltage, truly ensuring continuous lighting for 365 days, automatically starting the long-range lighting mode when the low voltage is detected, ensuring a longer lighting duration, and the battery will not be in a deep over-discharge state;

6. The charging limit current can be set from 5 to 30A to avoid users mistakenly connecting the solar panel and damaging the lamp;

7. Light control function, adjustable from high to low grades, automatically turns on the LED when it gets dark, and automatically turns off the LED when it gets bright;

8. Microwave sensing, adjustable from high to low grades, sensing time can be adjusted from 10 seconds to 255 seconds;

9. The following complete protection functions are available:
Battery reverse connection protection (must connect the battery first and then the solar panel);
Solar panel reverse connection protection (must connect the battery first and then the solar panel);
Overvoltage protection of the solar panel output;
Preventing the battery from discharging to the solar panel at night;
Battery overcharge and under-voltage protection;
LED open-circuit protection;

Specifications and Parameters:

Item  Product Model
SY-JD060    SY-JD120    SY-JD200
Battery voltage: 3.2V
Maximum charging current: 15A, 20A, 35A
Charging voltage range: 0 - 4.4V
Overcharge voltage (reference): 3.6V
Battery under-voltage voltage (reference): 2.7V
Recovery bright light voltage: 3.0V
Maximum photovoltaic input voltage: 30V (suggested 18V)
Solar panel reference power: 50 - 80W, 100 - 120W, 120 - 150W
MPPT tracking range: 8 ≤ Vmp ≤ 30
Starting charging voltage: ≥ 8.0V
Bright light activation voltage: 1.4 - 3.5V
Charging limit protection current: 5 - 40A
LED current (MAX): 10A, 15A, 20A
Drive LED voltage range: 2.6 - 3.5V
Drive LED maximum power: 20 - 30W, 40 - 50W, 50 - 60W
LED current accuracy: ≤ 3%
Segmented dimming time: 5 periods (12 hours)
LED current adjustment range: 5 - 100% adjustable
MPPT tracking efficiency: ≥ 99%
Charging conversion efficiency: 90%
Static power consumption: ≤ 0.05W
Remote control method: infrared
Microwave sensing: no
Product size (mm): 120*180*1.0, 150*255*1.0, 173*410*1.5

Product application

Solar street lamp:

JD series finished product.jpg