Switch use instructions
1, the battery is positive inside (the lamp holder yonder), the negative direction outward (tail).
2, switch on the tail, switch function of the switch is the switch function, light switch is the dimming function.
Two. Circuit board Usage Instructions
1, the store flashlight using advanced voltage constant current technology, can effectively solve the LED flashlight on the constant current requirements.
2, Special tip: A. Do not use the overpressure, the voltage should not exceed 4.2V B. The battery is in front of the root, do not reverse, otherwise it will burn the board C. Note that the temperature of the flashlight is controlled to ensure heat dissipation d. Non professionals do not open the PCB

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