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Hospital lighting can be harsh and unpleasant. The light may be necessary for medical examinations, but even at night, lighting in wards and corridors can create a rigid, institutional look. The lighting company Philips is set to change this with its innovative use of LED light bulbs. LED light bulbs and healing Philips’ starting point was its awareness of the way light affects people. These effects can be emotional and biological. With this in mind, the company considered whethe …

The London Underground Tube is getting revamped, complete with LED light bulbs. The new tube of London will be air conditioned, WiFi enabled and have LED lights installed. There will be a strip of LED lights on the doors and inside that will warn passengers when the doors are about to open and close. The underground train will now all be one instead of individual carriages and will have bright LED light strips on the front. LED light bulbs are more energy efficient and last longer than othe …

Lighting legislation is changing around the world. Many governments have accepted the need to promote new lighting systems such as LED light bulbs, in order to reduce energy bills and protect the environment. Most of this legislation focuses on incandescent bulbs. These bulbs convert just 10% or less of electrical energy into light; they disperse the rest as heat. This means incandescent bulbs are highly energy-inefficient. From September 2009, the European Union has phased in legislation to pre …