Low voltage flush mount halogen downlights (12v) are common in modern and renovated homes built over the last 30 years. However halogen bulbs are no longer used (new) as these lights are considered old technology. Halogen and incandescent bulbs have been superseded by LED lighting which has a number of major advantages. The main advantages of LED over halogen or incandescent include: Reduced heat dissapation, lower running costs, different colour options and longer operating life.

12V Halogen fittings (normally in the 30w-55w range) generate large amounts of heat and can pose a possible fire risk when not installed properly. Inside roof voids, adequate clearances must exist around the back of the light fittings.

‘Heat Covers’ are recommended on all in-ceiling installations especially if insulation is present. Heat covers are simple ‘fire rated’ covers (metal cups) that are installed inside the ceiling over the exposed back of the light fitting. These light heat covers reduce the possibility of ignition between materials inside the roof that could end up laying against the bulbs, like leaf litter or paper insulation.

A building inspection in Sydney’s Inner West revealed poorly installed downlights as seen below. Cardboard is not a suitable fire-rated heat cover for a downlight! This could go up in flames any time.

This paper roofing insulation almost fully ignited and could have burned the house down very quickly.

Light fittings should have adequate clearances from materials and timbers.