... saving. 3.Long lifespan Wholesale 5W LED Bulb with E27 base,warm white,pure white,cool white DescriptionSave more than 90% of power consumption ... made of high quality metal materials, safe and long lifespan. Perfect for living room, hall, office, store, super market, hotel, etc ... by ordinary bulbs• Long time working, 12 hours/day is perfect, produce low heat• No RF Interference• No mercury or other ...