Features : 1.Environmentally friendly---No mercury or lead and no ultraviolet & infrared rays. 2.Long life over 50,000 hrs, saving energy up to 80%. 3.No noise and no flicker 4.Less heating phenomenon. 5.Voltage Adjustable. 6.Solid-state and vibration-resistant for safety. Application: T5,T8 and T10 for more optional and are used in residential, hall, bar, hotel, restaurant, exhibition hall, parking lot, etc.