HOW CAN I FIX THE SECURITY LIGHT?

You need to be more specific as to what kind of light and whether it has a pir type sensor or a dusk till dawn type sensor.pir sensor (grey window type thing on the front) is the most likely if its been bought from BQ or similar.Try taking the bulb out and re-seating make sure the power is off of course.use a rag to avoid touching the bulb

Davy
January 2010