Long life
The power source's lifetime supplied by the accessory lithium battery is as long as two to three times of that of the common lead acid cap lamp.
The LED light's average lifetime is far more than 50,000 hours, so you not need to replace the lamp bulb in such a long using period.
These assure over 2 years lifetime of the lamp without any maintenance.
Intense illumination
Owing to adopting the most advanced LED illuminant equipping with special assistance lighting system, the light efficiency of the lamp is as 2.5 times as the common product. The illumination intensity can be basically constant from the beginning of ignition to 15 hours after ignition, keeping above 800Lx.
Simple use and good applicability
It can be matched with several kinds of charging rack because of adopting constant current and constant voltage charging controller.
Power saving and free maintenance
The charging expense of the high-tech product is only a third of the common product, so two thirds expenses can be saved. In the using life, there is no maintenance outlay and a half of workers working for maintaining can be reduced.
Environmental protection and humanity design
The weight of the lamp is merely a quarter of the common lead acid cap lamp.(It is only 0.35kg totally).So it is easer to carry. No electrolyte leakage, no pollution, no corrosion, free maintenance and so on make the lamp be a real environment protection product.

Rated voltage 3.7V
Rated capacity 2Ah
Burning time h ≥15
LED light source
Forward voltage 4.2V
Rated current 100mA
Light flux Lm ≥1000
Illumination intensity
Beginning of ignition Lux≥1000
15 hours after ignition Lux≥800
LED light subsidiary
Forward voltage 4.2V
Rated current 50mA
Rechargeable times of the battery ≥600
Total Weight ≤0.35Kg