China HWJ7LM factory and manufacturers

HWJ7LM

HWJ7LM(B) is a special lighting tool for coal miners underground to wear individually. This type

of mineral lamp is powered y nickel and metal hydride electric batteries, and inside the burner installs

the double LED light sources. It is the newest design in our company on lighting, which has the good

points of refine structure, light weight, free of maintaining for storage battery and the life of LED light source.

Environmental conditions in use: temperature 0~40℃

Voluntary standards of product: GB7957-2003《The General Security Performance and Requirement of Mineral Lamp》

The type of explosion-proof of product: Exsl

Main Technical Parameter

LED main light source parameter
NO		1
Rated capacity (Ah)		7
Nominal voltage (V)		3.75
Lighting time (h)		≥ 11
Voltage (V)		3.75
Current (A)		2 x 0.25
Illumination lx	Lighting beginning Lighting hours 11h	1500
		550
Life time (s)		≥ 600
Effective storing period of batteries storage		Half the year
Weight(g)		940