The noise our bulbs make when shaking is normal and does not affect the use of the bulbs.
Caldarax 2 Pack FSL BL T8 F10W Fly Killer Replacement Bulbs, 13In UV Lamp Light
2 Pack FSL BL T8 F10W Fly Killer Replacement Bulbs, 13In UV Lamp Light Tube for
Caldarax 2 Pack Vintage Light Bulb E14 Dimmable, ST48 Decorative Light Bulbs, Retro Filament Amber Glass Warm White 2700K, 400 Lumen, Squirrel Cage, Vintage E14 Edison Screw Cap Bulbs
