What happens to the daylight bulbs
Switch a starter, and if it's flashing, switch to a new lamp.I hope my answer will help you.
The lamp tube is aged, or the quality is poor, the new test can be changed, or the part of the starting circuit has a problem.
This is your two wrong wiring, you switch control now is zero line didn't give disconnect the wire, so the light will flash, but it's nothing is short service life of some of the light.
Look first at your switch connection is not good Vanguard is loose, and then the lamp wire is loose or not The last check the fluorescent lamp is the aging change a new one
