Introduction Where does the “poison” of children’s toys exist? Most of them are found in paint. Some domestic companies have two sets of standards for children’s toys. The export standards are very high and use non-toxic and harmless raw materials, while low-cost hazardous raw materials are used for domestic sales. Most of my country’s color toys have heavy metals tha...
Application of portable spectroradiometer in the Detection Direction of LED Lighting Fixtures Since the invention of LED lamps, their advantages such as high brightness, low power consumption and long life have quickly won the favor of the lighting market. Nowadays, LED lamps have been popularized in all aspects of our lives. However, more and more people are paying attention to the fact that as a...
Light-emitting diodes are not just a simple turn-on and turn-off mechanism. In addition to simply emitting a white light, LEDs also have the ability to emit thousands of shades. The characteristics of light color and intensity are called chromaticity, and this indicator is important to both LED manufacturers and consumers. Before the product goes on the market, the importance of measuring the chro...
Salt spray test is a kind of environmental reliability test, mainly used to test the corrosion resistance of metal materials of lamps. In order to verify whether the metal parts on the product will corrode when exposed to the atmosphere or other environments, the product can be placed in the use environment for a long enough time, such as a product life cycle. This is time-consuming and labor-inte...
IP (International Protection) protection level is the dust and water protection level of the product shell specified by the International Electrical Association (IEC). The requirements for waterproof test are very simple, that is, to prevent the intrusion, penetration, penetration, inflow or overflow of water. The diameter of water molecules is about 0.4nm, and the capillary pores larger than this...
1. Differences in application areas ESD61000-2 Electrostatic discharge generator is fully compliant with IEC/EN 61000-4-2, GB/T 17626.2 standards and belongs to the category of electromagnetic compatibility. The test object is a device that can work independently, such as LED lamps, and the device is in normal working condition. ESD61000-2_Electrostatic Discharge Simulator ESD-883D HBM/MM ESD Simu...
Before calculating the ErP energy efficiency rating method, we must first determine whether the lamp under test is a directional light source or a non-directional light source. The judgment method is as follows: First, use the goniophotometer system to test the IES file of the tested luminaire. The directional lamp refers to the luminaire whose effective luminous flux is greater than 80% of the li...
LED plant growth lamp is an artificial light source that uses LED (light emitting diode) as the luminous body to meet the lighting conditions required for plant photosynthesis. Classified by type, it belongs to the third generation of plant supplement lamps. In the lack of daylight environment, this kind of lamp can act as daylight, so that plants can grow and develop normally or better. Light env...
The high and low temperature environmental test chamber is also called the high and low temperature cycle test, which is one of the product environmental reliability tests. Basically all products are stored or operated under a certain temperature environment. In some environments, the temperature will constantly change, sometimes high and sometimes low. For example, the temperature in day and nigh...
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