In order to develop LED Flood light lighting technology, developed countries have attached great importance to the LED test methods and standards. Organizations such as the American National Standards the detection Institute (NIST), an internationally renowned testing experts to carry out the LED test, focus on the LED light emitting characteristics, temperature characteristics and lumen characteristics, test methods, trying to establish the full set of LED test methods and technical standards in the LED test has been walking in the forefront of the world.
LED lighting products from the point of view of the structure and the industrial development of LED Flood light 10W products currently mainly need to consider several parameters of the optical properties, electrical properties, thermal properties, radiation safety and life.
Optical properties: the LED optical properties are mainly related to the performance requirements of the spectrum, brightness, and chroma. According to new industry standards set by the semiconductor light-emitting diode test method ", the main luminescence peak wavelength, spectral radiation bandwidth, axial luminous intensity, the beam angle of half intensity, luminous flux, radiant flux, luminous efficiency, chromaticity coordinates, color temperature, color purity and dominant wavelength and color rendering index and other parameters. The LED Floodlight 20W display with visual visual effects, so the relevant color temperature and
Color index is not a requirement, and white LED lighting, these two parameters is particularly important, it is an important indicator of lighting atmosphere and the effect, and the color purity and dominant wavelength generally does not require.
Electrical properties: the LED Flood Lights 50W 12V/24V PN junction electrical characteristics, determines the electrical properties different from the traditional light source, LED Spotlight 30W lighting applications, one-way non-linear electrical properties, low-voltage drive, as well as static-sensitive features. The main measurement parameters include the forward drive current, forward voltage drop and reverse leakage current, reverse breakdown voltage and electrostatic sensitivity.
Thermal performance: lighting with LED luminous efficiency and power to improve one of the key issues in the development of LED industry, at the same time, LED PN junction temperature and shell heat issues is particularly important, generally with thermal resistance, case temperature, said junction temperature and other parameters.