1 x G9 40 Watt Halogen Capsule Bulb 240 Volt Clear : Amazon.co.uk: Lighting
GE Branded 30 watt = 40 watt BC B22 Golf Ball Halogen Light Bulb Dimmable Lamp | eBay
B414: British Pre-focus 12 volt double contact P36D, 50/40 watt Headlamp bulb - Head, Spot & Fog - Bulb Holders, Traditional Bulbs & LEDs - Vintage Car Parts