... CE, ROHS E40 energy saving led road light features1. Luminous efficiency :110-120LM / W 2. Long life: LED lamp life of up ... to 5-7 years; 3. Low heat, no hot-radioactive, no mercury, sodium and other ... the incandescent lamp, energy-saving lamps, electrodeless lamps, mercury lamp, sodium lamp without the need to replace the original holde E40 energy saving led road ...