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Floodlights with sensors make use of various technologies to detect movement or light levels. The type of sensor determines how the lighting responds and its suitability for specific situations.
The most common sensor in floodlights is the Passive Infrared (PIR) motion sensor. This type of sensor reacts to changes in infrared radiation, or heat, emitted by moving objects such as people or animals. As soon as a change in heat is detected within the sensor's range, the floodlight activates.
A dusk switch, also known as a lux sensor, measures the amount of ambient light. When the light level drops below a preset value (for example, at dusk or during cloudy weather), the floodlight switches on automatically. As soon as the light returns to the required level, the light turns off.
Some floodlights combine a motion sensor with a dusk switch. This ensures that the motion sensor is only active when it is dark, preventing unnecessary activation during the day.
An advanced variant is the floodlight with orientation light and motion sensor. These lights illuminate at a low light level by default (for example 10% of maximum brightness) as soon as it gets dark. When movement is detected, the lighting temporarily switches to full brightness and then returns to dimmed orientation light. This offers continuous, subtle lighting which switches to full intensity when needed. It is particularly effective for walkways and entrances where continuous basic lighting is desired, combined with extra brightness during activity.
These floodlights are highly versatile in areas where a constant light output is required, regardless of movement or daylight. Below are some situations in which they prove their value:
| Application | Primary Benefit | Additional Notes |
|---|---|---|
| Burglar Prevention and Security | Deterrence and warning | The sudden light discourages unwanted visitors. Place at entry points, dark corners, and garages. |
| Paths, Driveways, and Entrances | Ease of use and safety | Automatic light when arriving or leaving. Prevents tripping in the dark. Choose a wide detection angle. |
| Garden Lighting | Ambience and functionality | Lighting that switches on when movement is detected in the garden. Some models with orientation lighting provide a continuous, gentle glow. |
| Business Premises and Warehouses | Energy savings and efficiency | Illuminate specific areas only when staff or vehicles are present. Helps reduce operational costs. |
| Billboards and Facades | Targeted lighting on demand | Less common, but possible for objects that don't need constant illumination yet still need to attract attention when passed by. |
To highlight architectural features or provide consistent lighting to billboards over a long period, floodlights without sensors are a solid choice. They offer even illumination for the entire set operating time.
On sports fields, construction sites, or company parking lots, a constant, powerful light source is necessary to guarantee safety and visibility. Sensorless floodlights can serve as basic lighting in these cases.
To keep trees, ponds, or specific garden objects illuminated in the evenings, these floodlights offer an appealing solution. The light remains on, creating a consistent atmosphere.
A well-lit courtyard or driveway increases both safety and comfort. By choosing a model without a sensor, you can have lighting that stays on for however long you like, regardless of any movements.
To ensure proper operation and longevity of a floodlight with sensor, several technical specifications are important. Especially for installers, it's valuable to take these into account when selecting the right fixture.
The IP rating (Ingress Protection) indicates the level of protection against dust and water. Since floodlights with sensors are mainly used outdoors, an appropriate IP rating is crucial for durability.
[URL to blog/article about 'IP ratings explained']
The IK rating (Impact Protection) indicates the level of impact resistance of a fixture. This is important in environments where there is a risk of vandalism or accidental impacts. Ratings range from IK00 (no protection) to IK10 (protected against 20 joules of impact). For outdoor floodlights, an IK rating between IK05 and IK08 is often recommended.
The color of the light, specified in Kelvin (K), affects the ambiance. Warm white (2700K-3000K) is often used for atmospheric lighting around homes and patios. Cool white (4000K) and daylight white (6500K) are more suitable for functional lighting on driveways, parking lots, or entrances where optimal visibility is desired.
The light output, measured in lumens, determines how bright the floodlight is. Higher lumen values are needed for illuminating large areas or for security purposes.
Proper installation of a floodlight with sensor ensures optimal operation and safety. Some practical considerations:
Floodlights with a sensor provide a smart and energy-efficient way to illuminate outdoor areas. By choosing the right specifications and carefully installing the system, you ensure a sustainable and functional lighting solution that enhances both the safety and comfort of any environment.