miner's lamp

This lamp for miner. 1.the glass is tempered glass. 2.the box is new plastic. 3.the led is xuming which from us.and use 1w LED or 3W led. 4.the cable of this lamp is 38root brass wires.8mm 5.the battery is 3 18650 Li-battery ,capacity is 4000mah. 6.3000lux can shinning for 20hours.(main current is 250ma),the auxiliery light can shinning for 60hours.(current is 100ma). 7,water proof,resisting...KL4.2LM(A)Technical SpecificationsCharging voltage 5vRated battery capacity4.2Ah Li-ionRated voltage3.7v Rated working currentnormalHigh light luminance120mA200mAWorking time≥60hours35hoursLuminous flux≥2000Lux7000LuxLighting distance≥70m≥150mCharging time7hoursIllumination11 hours later not less than 800LuxUsing life time≥50,000 hoursWeight300g(including the battery)Application Mining emergency workshop, tunnel, marine operations, soldiers equipment etc.