What Is a Floodlight?
A floodlight is a device that has a generator and illuminates light.
Generally, the word “machine” is used for devices that have a part that is driven by itself. Typical examples are generators and electric motors. Heat exchangers and circuit breakers are also examples.
When the word “spotlight” is used, it refers to a lighting part attached to a building or a battery-powered lighting device. In contrast, the term “floodlight” refers to a floodlighting device that includes a generator or other drive unit.
Uses of Floodlights
Floodlights are mainly used for construction or work in dark areas.
The illumination intensity for work is roughly defined by some standards, and even for rough work, the illumination intensity of the work area should be about 200 lux (lx). Insufficient illumination means workers cannot see their surroundings or the surrounding area, which can put them in danger. It is the duty of the prime contractor to ensure the safety of the work area, and in the event of an accident or injury, the prime contractor will be held responsible.
The prime contractor provides floodlights for the purpose of ensuring illumination of the work area.
Principle of Floodlights
Floodlight consists of a fuel tank, a generator, and an illuminator.
The fuel tank contains the fuel used by the generator. Generally, kerosene, or light oil, is used. In rare cases, gasoline may be used. The fuel tank is designed to hold at least 8 hours of fuel so that the fuel does not run out during the work.
In the generator section, fuel from the fuel tank is used to turn a generator to generate electricity to supply the lighting section. The generator is an engine generator, which is simple in structure and easy to downsize. In Japan, 100V or 200V is used as the power supply voltage, and in most cases, a circuit breaker is installed to protect the generator from overcurrents.
In recent years, LED floodlights have become the most common type of lighting. A voltage is applied to the light-emitting diode to produce light. For lighting that requires the use of a generator, large floodlights (400W-800W fluorescent equivalent) are used. Balloon floodlights are also used for 360-degree all-round illumination.