... lifespan, over 50,000 hrs .3.No mercury , avoid the hazards of mercury on the environment.4.No fluorescent flickering, eye protection ... .5.Recessed mounted, maintenance free, easy installation.6.Different kinds of base for your choice, make it convenient for replacement, also ... prices will be replied in 24hours.2.Protection of your sales area, ideas of design and all your privated information.3.We ...