CCT Adjustable Microwave Sensor Emergency LED Bulkhead - White

This is a round surface mounted bulkhead with a built in microwave sensor and an emergency function, finished in plain white with a gently domed white diffuser set into a deep circular body. The light source is an integrated LED, so there is no separate lamp to buy now or replace later. Three selectable colour temperature settings let one fitting cover warm, neutral and cooler light, which is useful when you are buying for several spaces at once and do not yet know which tone each one wants. It also carries a corridor function, the mode that holds a low standby output between detections rather than switching off completely.

Bulkheads like this one earn their keep in circulation spaces: communal hallways, stairwells and landings, garages, utility rooms, plant rooms and the back corridors of small commercial premises. The shallow round form sits close to the surface, so it stays out of the way where headroom is tight or where a hanging fitting would be knocked. Along a run of corridor with the sensor doing the switching, the light comes up as someone arrives and settles back once they have gone, which suits a route used in short bursts rather than lit all evening.

A microwave sensor reads changes in a reflected radio signal rather than body heat, so it responds to movement across a wider spread than a passive infrared head and can sense through thin materials such as plasterboard and glazing. That is worth knowing before you site one near a stairwell opening or a thin partition. The manufacturer does not state the wattage, the lumen output, the Kelvin values, the detection range, the hold time or the duration of the emergency function, and no IP rating is given for it. Each order is for one fitting, with a minimum order of one.

Do I need to buy a bulb for this?

No. The LED is integrated into the fitting, so there is no cap to match and no lamp to source separately when you install it.

What does the corridor function actually do?

Instead of switching fully off when the sensor times out, corridor function holds the fitting at a low standby output, so the route is never left dark between one person and the next. The manufacturer does not state the standby level or the hold time.

How is a microwave sensor different from a PIR?

A PIR looks for moving body heat. A microwave head reads changes in a reflected radio signal, so it covers a wider spread and can detect through thin materials such as plasterboard, glazing and light doors.

How many colour temperature settings does it have?

Three, selected on the fitting, so one product covers warm through to cooler light across different spaces. The manufacturer does not print the Kelvin figures for the three settings.

What happens during a mains failure?

The fitting carries an emergency function, so it goes on giving light when the mains supply drops. The manufacturer does not state the emergency duration or the battery type, so confirm those with your electrician before specifying it for a designated escape route.