Replacement Oven Bulb Glass Cover/Lens, Fits Many Models Of SMEG Built In And Free Standing Ovens, Thread Diameter 33mm, Overall Height/Depth 35mm : Amazon.co.uk: Large Appliances
How to switch on the light in a SMEG oven
Oven Not Working Well? (Common Issues & Solutions) – Megafurniture
Will any light bulb work as an oven light bulb? | Lightbulbs Direct