Small 3U energy bulb is paragraph energy bulb, products. life is General bulb of 20 times times; brightness is General bulb of 5 times times, than General bulb energy 80%. through hair tube wall double coating processing of patent technology, effective filter has power conversion for light of process only sense produced of on human harmful of UV ray, makes light more natural soft, elimination has eyes due to near distance continuous reading and produced of Visual fatigue.