... 5Working Temperature-30-40°CProduct Materialaluminum body & iron baseLED Lifespan>50,000 hrs Features: 1.Fashionable shape,noble and fine ... circuits ,DC voltage,isolate potential safely hazard. 6.Long lifespan:The lifespan of LEDs are up to 50000 hours .it is 10 times ... lights.What's more ,the light decay rate is far less than the conventional ones. Application:For purposes of reading, writing, drawing, ...