Linear Halogen ECO Light Bulb 400W (= 500W) 118 mm 8550 Lumens Dimmable High Brightness 30% Saving. : Amazon.co.uk: Lighting
Greous Super Bright 400W-500W Light Bulb Equivalent, 65W LED Bulb 120 Volt Cool White 6500K E26, 6500 Lumens,High Watt Commercial Retrofit LED Bulbs for Yard Garage Factory Warehouse Workshop : Amazon.co.uk: Lighting
Halogen - Single Ended T4 - 500 Watt - 8000 Lumens - Bright White - 32 – lightingnbeyond.com
60W Super Bright LED Corn Light Bulb Fanless(500 Watt Equivalent) - E27/E40 Large Base LED Lamp - 6000K Daylight 7,200 Lumens for Residential and Commercial Ceiling Lighting : Amazon.co.uk: Lighting
5 x Energizer LINEAR 118mm R7s 8700 Lumens Halogen Bulb 240V ( 500 W ) Dimmable | eBay
2 x Energizer LINEAR 118mm R7s 8700 Lumen Halogen Bulb 240V ( 500 Watt) Dimmable 5050028023432 | eBay