Smart lighting systems are transforming how we manage energy use in commercial buildings, car parks and outdoor spaces. By automatically adjusting when lights switch on and off based on occupancy, time, or natural light levels, these energy saving controls can significantly reduce electricity costs, while improving convenience and sustainability.
In this guide, we’ll explain the three most common types of smart lighting systems – PIR (Passive Infrared) sensors, timers, and daylight sensors – to help you understand how each works and where to use smart lighting for maximum efficiency and savings.
What Are the Main Types of Smart Lighting Control?
There are three main types of smart lighting controls, each designed to automate lighting in different ways:
- PIR (Passive Infrared) sensors detect movement and body heat, automatically switching lights on when someone enters a space and off when the area is vacant. They’re ideal for areas with irregular occupancy, like corridors, toilets and storerooms.
- Timer-based controls switch lights on and off according to a pre-set schedule. They work well in spaces with predictable usage patterns, such as office buildings, retail spaces, or car parks that operate during fixed hours.
- Daylight sensors (also called photocells or lux sensors) measure natural light levels and adjust artificial lighting accordingly. When there’s sufficient daylight, the lights dim or switch off completely, making them perfect for spaces with windows or skylights, where natural light varies throughout the day.
PIR vs Timer vs Daylight Sensors: What’s the Difference?
Choosing between PIR, timer, and daylight sensor lighting depends on how a space is used and the lighting conditions throughout the day. Here’s a quick comparison to help you decide the best option for you:
PIR Sensors
Pros
- Respond instantly to movement, providing light only when needed
- Maximise energy savings in irregularly used spaces
- No manual intervention or schedule programming required
- Ideal for areas like toilets, storerooms and corridors
Cons
- Can be triggered by unwanted movement (pets, passing traffic)
- May switch off if occupants remain still for too long
- Less suitable for spaces with constant occupancy
- Require careful positioning to avoid detection issues
Timer-Based Controls
Pros
- Reliable and predictable lighting schedules
- Simple to program for regular operating hours
- Cost-effective and straightforward to install
- Perfect for offices, car parks, and retail with fixed hours
Cons
- Lights run on schedule regardless of actual occupancy
- Less flexible for spaces with variable usage patterns
- Don’t respond to natural light levels
- May waste energy during holidays or unexpected closures
Daylight Sensors
Pros
- Automatically adjust lighting based on available natural light
- Significant energy savings in spaces with windows or skylights
- Maintain consistent light levels throughout the day
- Reduce reliance on artificial lighting during daylight hours
Cons
- Require regular calibration to maintain accuracy
- Initial setup can be more complex
- Less effective in spaces without natural light sources
- May be affected by changing weather conditions or seasonal variations
Many businesses find that combining these systems – for example, using PIR sensors with daylight control, or timers with daylight sensors – delivers the best balance of energy efficiency, convenience, and cost savings.
Where Are These Systems Commonly Used?
Smart lighting systems can be installed in almost any commercial or residential setting, but certain environments benefit more from specific types of control. Here’s where each system works best:
Car Parks
Timer controls are popular in car parks with predictable opening hours, ensuring lights are on during operational times and off overnight. Combining timers with PIR sensors or daylight sensors can deliver even greater savings – lights only activate when vehicles are detected, and dim when natural light is sufficient.
Warehouses and Storage Facilities
PIR sensors are ideal for warehouses, particularly in aisles, loading bays, and storage areas that aren’t constantly occupied. Lights activate only when staff are present, significantly reducing energy waste in large spaces. Daylight sensors work well in warehouses with roof lights or large windows.
Office Buildings
Offices benefit from a combination of approaches. Timer controls manage lighting for core working hours, while PIR sensors in meeting rooms, toilets, and breakout areas ensure lights are only on when spaces are occupied. Daylight sensors near windows help maintain comfortable light levels while reducing electricity use.
Communal Areas and Corridors
PIR sensors are the go-to choice for communal spaces like apartment building hallways, stairwells, and shared facilities. These areas see sporadic use throughout the day, making motion-activated lighting both convenient and energy-efficient.
Choosing where to use smart lighting depends on occupancy patterns, natural light availability, and how predictable the space’s usage is. In many cases, combining two or more control types delivers the best results.
How Smart Lighting Systems Cut Energy & Complaints
Energy saving lighting controls deliver measurable benefits that go beyond simply reducing electricity bills. By automating when and how lights operate, these systems address two of the most common concerns for building managers: high running costs and occupant complaints about lighting.
Significant Energy Savings
Smart lighting systems can reduce energy consumption by 30–60% compared to traditional manual switching, depending on the type of control and how the space is used. PIR sensors ensure lights aren’t left on in empty rooms, timers prevent unnecessary overnight operation, and daylight sensors reduce reliance on artificial lighting during the day.
When combined with modern LED lighting, the savings are even more impressive. LEDs use up to 80% less energy than traditional lighting and last significantly longer, while smart controls ensure they’re only on when needed. This combination can cut lighting energy costs by up to 90% in some applications.
Lower Maintenance and Operational Costs
Because smart lighting systems reduce the total hours lights are in use, bulbs and fixtures last longer, cutting maintenance and replacement costs. Fewer call-outs for burnt-out bulbs means less disruption and lower labour costs for facility teams.
Fewer Complaints and Improved Comfort
One of the less obvious benefits of smart lighting is the reduction in complaints from building occupants. Lights that turn on automatically when someone enters a space eliminate frustration around finding switches in the dark. Daylight sensors maintain consistent, comfortable light levels throughout the day, avoiding the glare or dimness that can occur with manual controls.
Timer-based systems also prevent the common issue of lights being left on overnight or during weekends—a frequent source of complaints from environmentally conscious tenants.
Environmental Benefits
Reduced energy consumption translates directly into lower carbon emissions, helping businesses meet sustainability targets and improve their environmental credentials. For organisations working toward net zero goals, energy saving lighting controls are a straightforward, cost-effective step in the right direction.
Quick Payback Period
Most smart lighting installations pay for themselves within 2–4 years through energy savings alone. When you factor in reduced maintenance costs and potential improvements to property value and tenant satisfaction, the return on investment becomes even more compelling.
How MD Govier Installs These Systems Seamlessly
At MD Govier, we don’t just install smart lighting controls – we design complete lighting solutions tailored to how you use your space. With over 30 years of experience and NICEIC accreditation, our team combines energy saving lighting controls with modern LED lighting to deliver maximum efficiency and performance.
We start with a thorough consultation to understand your needs, assess your space, and recommend the best combination of PIR sensors, timers, and daylight sensors for your requirements.
We offer bundled installation packages that combine LED upgrades with smart lighting controls, giving you a complete solution in one installation. This approach maximises your energy savings, minimises disruption, and ensures all components work together seamlessly.
Want Help Choosing the Right System?
If you’re still not sure which smart lighting would suit your situation best, get in touch with our team today. We’d be more than happy to talk you through your options – we provide a free site assessment and as much no-pressure advice as you need.
You can share information about your needs via our simple quote form. Alternatively, call, email or get in touch via our contact page.