https://www.lightbulbs-direct.com/light-bulbs/halogen/capsule/
Halogen G9 and G4 Capsule Light Bulbs | Lightbulbs Direct
Halogen G9 and G4 Capsule Light Bulbs with push fittings making them easy to install. Ideal for reading lamps, cupboard lighting, desk lamps or chandeliers.
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