4ft (1200mm) LED high energy-saving fluorescent tube by LED light manufacturer PT-PNBC. CE and RoHS approved standard & materials used. Super bright, high energy saving of 70%, low power consumption with wide voltage range 85V to 265V. Long life span of at least 50,000 hours. We research, designs, develops & manufactures our own unique constant current LED Drivers. All LED tubes or lamps are made in PT-PNBC factories in Batam Indonesia and Shenzhen China.