LED Tester | Christmas Light Tester - LISUN

Gloss is an essential component of how our eyes interpret the shape and form of things. The finish of a product, its texture, as well as the way a sample is lighted and seen, may all have an effect on the impression of gloss. Surfaces that have a high reflectivity are viewed as being glossy, shiny, or lustrous, while surfaces that have a lower reflectance are regarded as having a semi-gloss or matte finish. There are a few different methods that may be used to evaluate gloss. Using a piece of optical equipment known as a gloss meter is one of the methods. A gloss meter gives quantified gloss measurements, given in gloss units (GU). How to Measure Gloss Gloss is assessed by shining a light beam of consistent intensity onto a test surface at a predetermined angle, and then observing the quantity of light that is reflected off of the surface when seen from the same angle as the light beam. A glossmeter is used to determine the level of this material’s specular reflectivity. Various surfac...

A luminance meter can be used in lighting engineering to measure the brightness and color temperature of light sources, allowing for better design and adjustment of lighting schemes. Manufacturers of light sources and emitters can use photometers to verify the performance of their products, ensuring that the brightness and colors meet requirements. In film and television production, photometers can be used to measure the brightness and color accuracy of screens. This is important for adjusting color corrections and ensuring picture quality. Traffic signal lights also need to be evaluated using luminance meter to ensure their brightness and visibility meet safety requirements. LISUN XYL-VI Luminance Photoelectric Colorimeter changes the traditional structure thoroughly, employs the digital X(λ), Y(λ), Z(λ) sensors to replace the traditional analogue sensors, employs the digital signal measurement system to replace the traditional analogue measurement system. The instrument has no analog...

The principle of UV aging test chambers: The ultraviolet weather resistance test equipment is another type of light aging test equipment that simulates sunlight, mainly simulating ultraviolet light in sunlight. At the same time, it can also reproduce the damage caused by rainwater and dew. The device conducts the experiment by exposing the material to sunlight and placing it in a controlled interactive cycle of sunlight and moisture, while changing the temperature. The device uses ultraviolet fluorescent lamps to simulate sunlight, and can also simulate the influence of moisture through condensation or spraying. In just a few days or weeks, the device can reproduce the damage that takes months or years outdoors. The damage caused mainly includes fading, discoloration, decreased brightness, powdering, cracking, blurring, embrittlement, decreased strength, and oxidation. The test data provided by the equipment is of great help in selecting new materials, improving existing materi...

DC electronic load is an electronic switch device which draws DC power and transfers, stores or supplies to the grid with its terminal input characteristics conforming to Ohm's law. It can also be used in ATE or ATS systems, including creating simulated wave shapes to test the power supply specs and characteristics, and even monitoring the battery usage or testing the power electronic component characteristics parameters online. Nevertheless, the actual use of DC electronic load must be in response to environmental needs, such as controlling battery charging, load simulation, system protection, etc., which require the agreed-upon loads with current or power magnitudes. Therefore, the performance of DC electronic load will also affect the parameters of battery operation, thus determining the role to be played by other safety control devices in the future. The functions of DC electronic load are mainly to test the output of power supply and heat generation. It can test the load c...

Methods to test anti -aging and light stability often cause controversy. Over the past few years, all kinds of methods have been applied. Now most researchers have used natural exposure methods, Q-SUN Xenon arc lights or QUV accelerate aging test equipment. There are many advantages of natural exposure testing methods, which are practical, cheap, and easy to operate. However, most manufacturers are unwilling to wait for a few years to observe whether a new improved product design has really improved. Climate and sunshine are the main causes of damage to coatings, plastic, ink and other polymer materials. This damage includes loss of light, fading, yellow change, cracking, peeling, crispness, reduced strength and layering. Even the indoor light and the solar light transmitted through the glass window will make some materials aging, such as the fading or discoloration of pigment, dyes, etc. For many manufacturers, the aging and optical resistance of products are extremely important. Eq...

The principle of withstand voltage test: Withstand voltage test, also is called dielectric voltage withstand test, is a testing method for measuring the conducting performance of a device and its resistance to high voltage charge damage, mainly used for detecting electrical safety. It can be used for both regular circuit products and prototype for new development, providing guarantee for further safe usage. Withstand voltage test uses high voltage pulses to test the insulation performance of the tested system to see whether short circuits or overloads will occur. The settings of test conditions will directly influence the accuracy and reliability of the test results. Therefore, prior to testing, parameters should be studied and calculated carefully to ensure test accuracy. What is hipot testing used for? Hipot testing is a non-destructive test used to check the insulation capability of tested products under instantaneous high voltage environment. This test requires keeping a cert...

Introduction Surges, also known as sudden voltage spikes, pose a significant threat to electrical systems because they have the potential to inflict damage to sensitive gear and cause production to come to a stop. Surge generators are required in order to test and assess the efficacy of different surge suppression systems that provide protection against the aforementioned voltage anomalies. In the following paragraphs, we will investigate the reasons why surge generators are so important for the creation of effective suppression techniques. By reviewing the processes that are already in place, specialists can ensure that electrical systems are resilient even in the face of surges and storms. Understanding Surge Suppression In the process of surge suppression, protective measures are used in order to decrease the impact that voltage spikes have on electrical infrastructure. These surges might be caused by a number of different things, including electrical grid oscillations, ligh...