Up til now, eco light bulbs have not been perfect. You save the environment, but get cold, poor quality light that flickers and you can’t use a dimmer switch. Varilight’s new DigiFlux bulb promises to change that. The 20W bulb’s light is bright and warm and, thanks to some clever circuitry, it can be used as a dimmer with a regular on-off switch. Not only does it help save the planet, it protects the ambience of your interiors.

Available from B&Q and Homebase priced £10–£12.