The most important external factor that affect the sleep is light. Light plays a central role to regulate the circadian...
Every living organism needs energy to grow. Human beings take the energy from foods. Plants, on the other hand, get...
The lack of knowledge and experience cause contradictory statements regard of plant growing. Actually, how plants react to light and...
It is an innovative signal module designed to inform drivers when the signal will change. Countdown timer is embedded in...
Portable Traffic Signal Light is a temporary signaling solution powered by solar energy. Different signal units can work synchronously without...
Optical elements that direct the light through reflection and refraction at a certain angle is called reflector. Reflectors gather light,...
The total light quantity of a lighting device which is emitted in every direction is called luminous flux. The unit...
Luminous intensity is the amount of light emitted by a light source in a specific direction. The unit of luminous intensity...
Luminous efficacy indicates, with how efficiently a lighting equipment converts electrical power into the light. The ratio of light flux...
Devices that measure the light level and light specification are called light meter. Light meter devices are used in lighting,...
Beam angle is a statement for how a light source distributes the light. Beam angle expressed in degrees and its...
HPS is the abbreviation of high-pressure sodium. HPS is a type of high-intensity discharge lamps (HID) and it is one...
Goniophotometer is a test device to measure the light emitted from a light source with different angles. Goniophotometer word constituted...
Optical material takes control of bright light comes from a light source and emit it softly is called diffuser. Diffusers...
Wavelength indicates the distance between repeating units of a waveform (2 peak points). Wavelength is shown by Greek letter (λ)...
CRI stands for Color Rendering Index. CRI is an important criterion of the visual performance of a light source. CRI...
Maintenance factor occurred by the aging or pollution of the lamp. It is the multiplier that expresses the decrease in...
It is specially designed for outdoor lighting. During the day, it is charged with solar energy and provides illumination without...
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