... efficiency :110-120LM / W 2. Long life: LED lamp life of up to 5-7 years; 3. Low heat, no hot ... -80 °C, humidity ≤ 65% of the environment. 6. 6pcs per carton, carton size: 46x31x26CM , gross weight 9KG7. Energy saving up to 70-90 ... applies to mines, ships, machine tools and other lighting. 5 can directly replace the incandescent lamp, energy-saving lamps, electrodeless lamps, mercury lamp ...