The Moon light Energy Saving Night light plug uses NASA space technology developed to illuminate cockpit panels with a restful, soft blue-green light. This slim energy saving night light unit will run continuously for less than 50p per year, proving far more cost effective than a traditional night light or bedside lamp. The electro-luminescent bulb-free panel is cool to touch & ideal for night lighting in the bedroom, hallways, corridors at home or on holiday. The Moonlight Energy Saving Night light comes complete with a 3 year guarantee & with our great online sale price represents excellent value for money.