... % in 10,000 hours service. 4. All LEDs light up immediately, even switch on/off often, it will not affect lifetime. 5 ... :1, Remove fluorescent tube, also remove starter & ballast.2, Install light switch dimmable T8.8. Remarks:Socreat expert in intelligent LED lightings ... , like light switch dimmable LED T8, Microwave sensor LED T8, also like LED ...