Main Technical Parameters:

Item

Parameter

Unit

Max. brightness of 1 LED light

60000

Mcd

Max. luminous flux of 1 LED light

3.5

Lm

Lighting time after 1 minute cranking

1 LED light

40

minute

4 ф3LED flash

60

minute

Lighting time after being charged fully

1 LED light

5

hour

4 ф3LEDs flash

12

hour

Flash frequency

2

HZ

Voltage Output

5.7v / 6.4v

v

Max. current output

500

MA

Max. power output

2.5

W

Lifespan

LED lifetime

50000

hour

Switch lifetime

100000

times

Plastic parts lifetime

5

year

The whole unit lifetime

5

year

It provides 3~8 minutes' talking time to mobile phone by cranking 3 minutes