... maintenance for power, communication, highway, railway at night, night lamp for cutting off rubber plant and absorbing mucus and for ... light will display green color. this mean that miner’s lamp can be used normally. When it’s charging ,the ... Mining Lamp: GB9757-20032)KL Type Mining Lamp: MT927-20043)KL4LM Type Mining Lamp: Q/DG.018-2007Certificates1) Quality Management System Certificate No:GB/T19001 ...