HV3731T-BLK-PIR - Aluminium Black Adjustable 12w LED Floodlight with Sensor

12W adjustable LED floodlight with PIR sensor, in black

This is the sensor version of the compact adjustable floodlight — poly powder coated black aluminium, 170mm across, drawing 12W, with a passive infrared sensor built in. It switches on when something warm moves within its detection zone and switches itself off again afterwards, rather than staying on because someone forgot the switch.

The head is adjustable, so the light can be aimed at whatever needs lighting after the fitting is mounted. That is worth understanding as two separate decisions: where the light points, and where the sensor looks. They are related but not identical, and a floodlight aimed perfectly at a doorway can still have a sensor covering the footpath.

Getting the sensor right

A PIR responds to warm objects moving across its field of view rather than toward it, so a sensor positioned to look along an approach path triggers more reliably than one looking straight down it. That single detail is the difference between a light that comes on as you reach the gate and one that comes on as you reach the door.

Think about what else moves through the zone before fixing the position. Pets, hanging washing, a road with passing cars, a neighbour's driveway and even a hot tin roof cooling in the evening can all trigger a PIR. A sensor light that switches on all night is worse than no sensor at all, and the fix is nearly always position rather than the fitting.

Light output and colour temperature

The fitting is tri-colour, so the colour temperature is selected on the fitting at installation rather than being fixed at manufacture: 3000K, 4000K or 5500K, rated at 590lm, 660lm and 610lm respectively. Colour rendering is above 80 CRI.

For a sensor light the cooler settings generally do the job better. 5500K reads as brighter for the same output and gives sharper contrast on a moving figure, which is the point of a light that only comes on when something moves.

Power and installation

It runs on 240V AC mains and requires no driver. It is a Class 1 fitting and requires an earth connection, so installation is work for a licensed electrician. It is rated IP65 for dust and jetted water and can be mounted on a fully exposed wall.

Aim the head after it is mounted and powered, and then walk the approach at night to confirm both the beam and the trigger point before deciding the job is done. Rated lamp expectancy is >30,000 hrs, and the LED is built in.

Frequently asked questions

Download Datasheet (PDF)

Download Datasheet (PDF)