... Saving up 90% more than fluorescent tube, 60% more than normal LED T8. 2. Internal and isolation power supply, more safe. ... lot, basement, elevator, passageway, washroom, park,bus station, villa and other 24hours lighting area. 5. Certificate:CE, RoHS6. Quality ... guarantee:7. Installation:1, Remove fluorescent tube, also remove starter & ballast.2, Install light switch dimmable T8 ...