SL11-425-40W Germicidal Lamp Electronic Ballast UV Lamps Electronic Ballasts for Exhaust Gas and Water Treatment Two-Wire Output AC 230V 40W : Amazon.co.uk: DIY & Tools
Common Signs It's Your Ballast and Not Your Bulbs — 1000Bulbs Blog
Lightbest UV Electronic Ballast, 230V, 10-18WW
What are ballasts used for?
Sale of electronic ballasts from Lumatek
Philips Advance Fluorescent Ballast 2 Lamp 48" T8 Instant Start 120V | The Home Depot Canada