LED Tester | Christmas Light Tester - LISUN

The rapid temperature change test chamber is suitable for “safety testing of electrical components and provides reliability testing, product screening testing”, and can also “improve product reliability and quality control” through this equipment, Its test chamber is used as a commonly used testing equipment in fields such as aviation, automobiles, home appliances, and scientific research. However, it assesses and determines the parameters and performance of products such as electricians, electronics, automotive appliances, and materials, as well as their suitability for use when subjected to temperature and environmental impact changes during high and low temperature tests. Design features of rapid temperature change test chamber: The functions of the rapid temperature change test chamber include: high-precision system circuit, complete P.L.C locking treatment for any component action, and all use P.I.D automatic calculation control, resulting in high temperature control accuracy. And...

There are many different brands of color spectrophotometers on the market, and even within the same brand, there are multiple products available. The handheld and desktop types are the most popular categories, but what are the differences between these two types? Portable Colorimeters – also known as Portable spectrophotometers Can directly read data and connect to a computer through software: Small size, convenient to carry, high accuracy, and moderate price. Easy to operate, even ordinary personnel can easily handle it. Desktop Colorimeters – also known as Benchtop Transmittance Spectrophotometer: Equipped with a reading window, used with color matching software when connected to a computer, has high accuracy color matching function, large size, stable function, and high price. As we all know, Benchtop Transmittance Spectrophotometer are more accurate and consistent than portable devices. When using strict tolerances or setting color specifications, desktop devices are usually the pr...

I. Introduction of Surge Generator Surge generators are important equipment in electrical systems. Their main function is to simulate high-voltage pulses or instantaneous voltage fluctuations to test and evaluate the effectiveness of different surge suppression systems. These high-voltage electrical devices mainly serve to prevent transient voltage fluctuations from damaging electrical systems, thus safeguarding production. Surge generators play a crucial role in measuring the suppression capabilities of electrical systems. They are able to generate high-voltage pulses to simulate lightning strikes or other sudden high-voltage current events, testing the efficiency and reliability of suppression systems. If these suppression systems cannot withstand these high-voltage pulses, it means that they are unable to effectively protect the electrical system, which may lead to production interruptions and equipment damage. Therefore, surge generators are essential tools for ensuring that electr...

What is Damped Oscillation: Damped oscillation is a type of non-harmonic motion commonly seen in systems such as spring oscillators and pendulums. It is a vibration in which the amplitude gradually decreases over time due to the presence of factors such as friction and resistance, also known as damping. The vibrating system continuously overcomes external resistance and consumes energy, causing the amplitude to decrease until the vibration eventually stops. This energy-decreasing vibration is called damped oscillation. Unlike harmonic oscillation, damped oscillation is non-periodic. Damped oscillation systems belong to dissipative systems, and their damping properties can be quantitatively represented. Damping also includes any influence and cause of energy decay in the vibrating system. Therefore, damping can be caused by external forces or inherent characteristics of the system. In summary, damped oscillation is a special vibration phenomenon in which energy gradually decreases. Damp...

What is Coupling and decoupling? Coupling is the energy exchange linkage between two circuits or two parts in one circuit, enabling energy to be transmitted from one circuit to another or from one part to another. Decoupling is the prevention of energy feedback from one circuit to another, to avoid unpredictable feedback reactions, resulting in abnormal operation of the next level amplifier or other circuits. Analyzing further the working principle of the coupling-decoupling network: By separating noise from the circuit with the coupling-decoupling network, the signal can be made cleaner and more stable. The coupling-decoupling network is composed of two capacitors and one inductor. The two capacitors are responsible for separating the high-frequency signal from the direct current signal, and the signal is separated through the inductor. When the high-frequency signal passes through the inductor, the bias voltage will change, thus changing the amplitude of the voltage on this basis. In...

The High and Low Temperature Termal Shock Chamber is the main equipment of modern reliability laboratories, which simulates the changes in cold and hot environments for testing, and is used for cold and hot cycles of various materials and environmental stress tests under high and low temperature impacts. The physical changes and material properties of the product after the environmental test of thermal expansion are evaluated through the cold and thermal shock test. The testing products include cycling tests on materials such as lithium batteries, metals, rubber, and rapidly changing electronics, to test the stability of the materials. From the perspective of LED product quality, whether it is indoor or outdoor, the environmental climate of LED depends to a certain extent on the LED utilization rate. The high and low temperature impact test chamber environmental testing equipment can simulate the rapidly changing climate of high and low temperatures in the natural environment. The LED ...

Transformer preventive testing, a crucial component of power equipment operation and maintenance, has long been given priority by the state. Practical experience suggests that following inspection regulations enables the inspection to make full use of its role and safeguard the safe operation of power equipment. With the enhancement of insulation level and the continuous advancement of computer technology, the intelligence construction of power equipment is gradually being promoted. Preventive testing is also facing new changes. In the future, it will move towards scale, information and intelligence, and the equipment such as transformer and circuit breaker can be effectively monitored and diagnosed by testing laboratory. The use of information technology and automation technology will be used for preventive testing of power equipment, to enhance the safety performance of power equipment operation and realize scientific management of preventive testing. Therefore, the application of tr...