1. Nominal power supply voltage V 3.7
2. Continuous operation time at fully charged battery battery (4.2 V) fully charged, not less than hour 16
3. Number of battery charging cycles, not less than 500
4. Time of battery charge, up to one hour 3.5
5. Angle of illumination of LEDs, degrees ± 8
1. Nominal power supply voltage V 3.7
2. Continuous operation time at fully charged battery battery (4.2 V) fully charged, not less than hour 16
3. Number of battery charging cycles, not less than 500
4. Time of battery charge, up to one hour 3.5
5. Angle of illumination of LEDs, degrees ± 8