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Watt are you waiting for? Make the switch to LED bulbs! | UCL Psychology and Language Sciences - UCL – University College London
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BLAUPUNKT E27 LED Light Bulb - Classic - Room Lighting - 9W - Edison Screw - Warm White 2700K - Equivalent of 60W Incandescent Bulb - Frosted - 900 Lumens - Energy and Cost Saving - Pack of 10 : Amazon.co.uk: Lighting
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10 Pack of Energy Saving LED Light Bulbs 18W 6000K Cool White Screw in E27 ES UK Lighting : Amazon.co.uk: Lighting
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