Questions and answers

How do STEINEL floodlights work?

Light sensation: The LED powerhouse

STEINEL is already making future technology accessible to everyone. In the XLed Home spotlight, high-performance LEDs ensure perfect illumination and sensationally low energy consumption.

The new high-tech spotlight needs less than 15 watts to bathe the surroundings in glistening light. The incredibly high efficiency is made possible by the use of LEDs as illuminants and an innovative control system. These modern components have another major advantage: compared to halogen lamps or incandescent lamps, they have an almost unlimited service life. The long service life is aided by STEINEL's Active Thermo Control technology, which protects the LEDs from overheating.

Because the floodlight generates only a fraction of the heat of conventional floodlights, it can be mounted under canopies without any problems. The extremely swivelling light panel can be optimally aligned with the area to be illuminated.

Intelligent light switching is provided by STEINEL's IR sensor technology, which has been tried and tested a million times over and is also used in the IS 140-2 motion detector. The combination of LED technology and sensor control results in savings of 90% compared with conventional halogen floodlights.

Sensor-switched halogen floodlight

STEINEL sensor-switched halogen floodlights are the ideal solution when it comes to illuminating house fronts, driveways and vulnerable areas with extra brightness.

These vigilant floodlights are designed from the outset for light sources of varying strengths from 150 to 500 watts of light output. This automatically puts special eye-catchers in the right light, welcomes guests and effectively deters the uninvited. The STEINEL range offers the right model for every application, from the low-cost HS 5140 Fresnel lens floodlight to the microprocessor-controlled HS 500 high-tech floodlight. The HS 150 and HS 300 floodlights are fitted with a ceramic reflector.

Adjustment options

  • The detection area can be precisely adapted to local conditions by means of the horizontally and vertically swiveling multi-lens (HS 150 DUO, HS 300 DUO, HS 500 DUO) or Fresnel lens (HS 5140) and can be restricted by means of enclosed cover panels.
  • Simple setting of time and twilight threshold via rotary control.

Light ON. Light OFF.


Automatic luminaires are realized with the help of motion sensors. Two different technologies are used: HF sensors are the optimum solution for indoor areas, while passive infrared (PIR) sensors are used exclusively for outdoor areas.

Thermal radiation as a remote switch

The heart of a PIR sensor system is a so-called pyrosensor. This electronic component reacts to changes in the incident infrared heat radiation with a change in voltage.

Since every person emits infrared radiation due to his body heat, he inevitably changes the thermal image detected by the sensor when he enters the system's field of view. The resulting voltage jump is processed by the electronics to switch light.

In order to be able to react to movements within the detection range, the sensor systems are equipped with a segment lens. It divides the field of view of the pyrodetector into active and passive (not visible to the sensor) zones. If a heat source crosses a zone boundary, the IR radiation received changes for the sensor and it emits a signal.

Multisensor technology

STEINEL has developed multisensor technology to meet particularly stringent requirements in terms of the size of the detection zone. Here, two or even three pyro sensors are arranged within the system at a special angle to each other so that their detection ranges add up.

Segment lenses

STEINEL multi-lens technology

Multilens technology (MLT) enables seamless monitoring of a hemispherical detection zone. It is thus the optimum lens system for motion detectors with dual or triple sensors.

Fresnel lenses

Fresnel lenses offer the simplest way to segment the detection area of an infrared detector. A group of individual lenses is arranged in a circular segment. With a maximum detection angle of 180°, an area of up to 225m2 can be reliably monitored. A second optical window for the area below the main detection zone makes it almost impossible for the sensors to creep underneath.


STEINEL sensors generally have a max. range of 12m, which can be shortened if the direction of travel is radial (towards the sensor).