1. Use Environmental conditions

a)Temperature:0~40℃;

 b)Relative humidity:≤98%(25℃);

c)Atmospheric pressure:80 kPa~116kPa;

  d)Wind speed:≤8m/s;

e)Storage temperature:-40℃~+60℃

2. Safety sign

1. Explosion proof type:mining use intrinsically safe

2. Explosion-proof mark:Exib I Mb ,Exib IIC T4Gb

3,Main performance and technical parameters

 3.1 Main technical parameters

3.1.1 rated operation voltage:Ue:DC3.6-7.0V;

3.1.2 operation current:Ie:≤1.2A;

3.1.3 Maximum lighting(0.5m):300Lux.

3.2 Basic function

3.2.1 display method:left, right, all lights bright mode switching function;

3.2.2 display mode:flash and bum steady switching function

3.2.3brightness adjustment function

3.3 Intrinsically Specification:

Power supply: four AA / 5 ordinary carbon dry battery in series

U₀:6.7V ; I₀:5.0A ;rated operation voltage:6.0V operation current:≤ 1.2A .