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ATEX and IEC Ex Flame-proof Explosion Proof Lighting & Equipment
Explosion Proof Lights
Explosion Proof Motors - Motors for Hazardous Locations
Industrial and Vaporproof Emergency Failsafe Lighting
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QC Series Industrial Portable Lighting - Quick Change Mount
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Work Site Lighting

02/28/17 Integrating Solar Lights with Motion Sensors

Article - February 28, 2016 By

60W Solar Powered LED Flood Light - 5400 Lumens - (3) 100aH SLA Batteries - All Weather - 120W Panel

Integrating Solar Lights with Motion Sensors

Solar powered motion sensor lights are effective security accessories for remote locations that experience sufficient amounts of sunlight throughout the day. The units offer seamless installation, require minimal maintenance and remain operational without electrical support.

Locations without dependable access to the grid may find solar security lights useful in maintaining illumination at night. When coupled with LEDs, individuals can further reduce overall costs, and increase the fixture’s efficiency during light production. Solar motion-sensing units thrive in locations without access to reliable wiring and connections from a power source, such as pathways, backyards and perimeters around a residential area.

“Initially, solar powered generators can be costly to purchase. But with minimal maintenance and ongoing costs, individuals are not required to continuously invest in the machine to ensure functionality. Sunlight is considered to be an [infinite] power source, and owners would only be limited by their system’s power storage capacity,” explained Larson Electronics.

Maximizing Sensor Coverage and Battery Lifespan

To ensure optimal functionality, the light’s sensors and panels must be strategically installed for maximum coverage. Direct exposure to sunlight may help provide consistent power to the battery for storage. Some solar panels are attached directly on the fixture, making adjustments to the configuration difficult to execute. Choosing a model that comes with the panel separated from the fixture and battery (connected via cable) is a viable solution for locations with shady corners and unconventional roofing angles.

The type of motion-sensing technology that the solar fixture uses may determine the ideal position for the sensors. For example, sensors that use passive infrared (PIR) panels are easily activated by changes in temperature. The sensor monitors for changes in heat levels, including body temperature. To avoid false alarms, it is advisable to install the sensors away from the following objects: pools of water, dryer vents, car traffic and air conditioners. PIR panels are also more sensitive to left and right movements, compared to forward-approaching activity.

Radar motion sensors utilize ultrasonic waves or microwave pulses during activation. The panels gauge the distance between the object and the sensor, as it sweeps the location with invisible waves. “High quality motion sensors can detect movement from far and wide distances. Some models go as far as offering 360-degree, full circle coverage. These variants are recommended to avoid dead zones in the facility. For wall-mounted sensors, 180-degree coverage is sufficient,” said Larson Electronics.

Outdoor Obstacles During Installation

Before installing solar powered security lights, it is crucial to first check the conduciveness of the target location. Such systems typically require 6-8 hours of sunlight per day in order to sustain power after sunset. Because of this, the amount of sun the area receives is one of the main deciding factors of operation. It is important to remember that solar panels only collect up to 10 percent of the sun’s energy. To maintain high efficiency rates during harvesting, one should clean the unit periodically with a soft cloth, and remove any obstructions stuck on the surface, such as leaves, branches or dirt.

Outdoor temperatures should also be taken into consideration when installing the lights, with emphasis on extremely low temperatures. Cold winter seasons can cause the fixtures to malfunction, resulting in non-activation when moving around the sensor. This issue is not limited to solar powered motion sensor units; as models that are powered by electricity are also prone to premature failure when exposed to cold temperatures.

Related Categories/Products
Category/Product (click on link below for more information)
Solar Battery Chargers
Work Area Lights
Solar Powered LED Lights
Solar Dock Lights
Solar Power Generators with Light Towers
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