PIR Security Lighting Guide¶

Complete guide to PIR security lighting for UK homes covering sensor placement, lumen output, LED vs halogen options, and integration with CCTV and alarm systems.

PIR Security Light Types and Selection¶

PIR passive infrared security lights detect body heat and movement, automatically switching on to illuminate approach routes. UK police crime prevention advice recommends PIR security lights as one of the most effective deterrents. Choose LED units with 1200-2000 lumens for adequate coverage while maintaining energy efficiency. LED lights use 90% less power than halogen equivalents and last 25000 hours versus 2000 hours for halogen. Popular UK brands include Steinel, Narva, and Bosch. Steinel XLED Home SF costs 45-60 and provides 1400 lumens with 10-metre detection range. Prices range from 15 for basic units at Toolstation to 100+ for premium models with adjustable detection zones. Dual-head floodlights provide wider coverage than single-head models.

Installation and Placement Best Practices¶

Mount PIR security lights at 2.5 to 3 metres above ground level for optimal detection range. Angle the sensor downward slightly to avoid false triggers from passing vehicles and pedestrians on public footpaths. Set the timer to 1-3 minutes longer duration reduces deterrent effect as neighbours habituate to the light coming on. Position lights to illuminate entry points without shining into neighbours' windows or blinding CCTV cameras. For the front of the house, mount lights above the front door and garage. For the rear, position lights covering patio doors and back garden access. Wiring should be done by a Part P registered electrician unless you have appropriate qualifications. Solar-powered PIR lights are available for locations without mains power at 20-40 but provide lower output.

Specifications and Comparison¶

Feature	Budget	Mid-Range	Premium
Lumens	600-1000	1200-1800	2000-3000
Detection range	8m	10-12m	15-20m
Wattage LED	10-20W	20-30W	30-50W
Adjustable sensor	Fixed	Horizontal only	Full 180 degree
Price range	15-30	35-60	70-150

FAQ¶

Do PIR security lights deter burglars?: Yes. Research on burglary target selection consistently identifies PIR security lights as a deterrent. Illuminated entry points are significantly less attractive to intruders who rely on darkness for concealment.
Can PIR lights be connected to CCTV cameras?: Yes. Many CCTV systems have AUX inputs that trigger recording when PIR lights activate. This provides recorded evidence of any motion event while the light illuminates the subject for better image quality.
What is the best mounting height for PIR lights?: 2.5 to 3 metres is the optimal range. Higher mounting reduces detection zone coverage on the ground. Lower mounting increases false triggers from small animals and reduces coverage area. For more information see our Window Lock Fitting Guide.

Last updated: 2026-05-31.

External Resources¶

For further information consult authority guidelines at the Which?.