2. PV solar charging and discharging automatic control switch, suitable for a variety of battery voltage
3. Easy to use and portable
4. Charge during the day, automatically turn on the light when it is dark, automatically turn off the light when it is light
5. Small power controller suitable for solar garden lights, lawn lights, coloured string lights, small street lights, etc.
Charging during the day, automatically turn on the light in the evening, automatically turn off the light at dawn, no battery voltage that is the output voltage, the circuit relies on the detection of solar panel power generation voltage changes to control the output, no photosensitive components; applicable to a variety of batteries.
1.B+B- connect to lithium battery
2. S+ S- connected to the solar panel
3. L+L- connected to the output
1: Access to lithium battery Battery must have corresponding protection board
2: Access to the LED lithium battery is charged at this time the LED is lit
3: Access to the solar panel at this time the solar panel has light irradiation LED off no light irradiation LED light
If you need to turn off at night or transport storage has been reserved for the switch interface SW cut off can be installed switch
1: Control board stable working output current can not be greater than 600ma otherwise may cause output protection
2: Charging backflow prevention without overcharge and overdischarge protection lithium battery must be used with the corresponding protection board (mobile phone batteries are with 3.7v protection, 18650 more without. Can not use 3.7v protection board in series)
3: Pay attention to waterproof and insulation
4: LED lamps and lanterns can not use boost drive
5: The controller battery voltage is the output voltage, unlimited current voltage limit, 2V3V LED lamp beads can not be used directly, need to buck constant current drive or string current limiting resistor use, the output current is the maximum working current non-constant current
1: Output power is the actual power before use, please determine the actual power consumption of the load
2: Direct access to 3V led may damage the controller or LED
3: The battery must be with a protection plate battery voltage and solar panel open circuit voltage match
10 x solar control switch circuit board
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