... 100 times of incandescent lamp,5-15times of high pressure electric discharge lamp,and 5-10times of ... electrodes filaments,life time>100000 hours 3.Have high luminous efficacy 80lm/w,effective luminous efficacy up ... 70% enevgy,similar to new fluorescent lamps of high energy saving,which creat less heat to reduce ... to reach and busy such as tunnels,roads ,high bay areas,Ceiling Lights has a wide operating ...