... is less than 1‰ per 1,000 hours.5.Long lifespan:30000-50000 hours , longer than most of lamps in LED market.6.Advanced ... % saving on the electricity bills,and greatly reducing maintenance cost.9.Instant start, no flashing,No UV/IR Radiation, and no ... indoor lighting series including LED ceiling light,LED bulb light,LED spot light,LED tube light, LED down light,LED strip light and LED bar light. More ...