... -heat function: Make the T5 tube long life time 7, No flicker, near to natural light, good for eyes 8, No labour ... (use T8-T5 fixture) 1, turn off power supply 2, take away the T8 lamp 3, take away the starter ... kilowatt/hr 0. 035 kilowatt/hr electricity saving Comparing with 58WT8, 35WT5 will save electricity by 48%. T5 TO T8 Converter 14W 21W ...