BRIGHT sparks in Stockton are being encouraged to trade in their light bulbs to help the environment.

As part of the Market Day Madness campaign, run by the Tees and Durham Energy Efficiency Advice Centre, staff will be giving away low energy lightbulbs every Wednesday and Friday in March.

Staff at the centre in Blue Post Yard, Stockton, will give a light bulb to anyone who brings in an ordinary 100 watt bulb in working order and completes a simple Home Energy survey.

Centre manager Rob Chatterje said: "Hopefully, it will switch people on to the benefits of energy and environmental conservation.