Knowledge

LED lighting penetrates everybody’s life, becoming more intelligent and more sophisticated. When designing high quality and excellent luminaire, the design engineer must carefully understand the LED Driver since it is the heart of a light fixture. This article describes the most frequently used LED driver concepts and provides the methods to select a suitable and

If you have compared different energy-saving light bulbs, you may have noticed that some are labeled as Energy Star products, while others carry the DLC label. Sometimes buyers are confused about the full content of these two energy-saving groups, and why some lamps have an approval mark for one group, but it seems that there

Table 1: V5.1 Efficacy Requirements for Luminaires and Retrofit Kits [DLC Standard and DLC Premium Classifications] Table 2: V5.1 Standard Efficacy Requirements for Lamps [In-Luminaire and Bare-Lamp]* Table 3: Testing and Reporting Requirements for Spectral Quality (DLC Standard) Table 4: Additional Testing and Reporting Requirements for Spectral Quality (DLC Premium) Table 5: V5.1 Testing and

Recently, LED Grow Lights Depot, a well-known YOUTUBE grow light media, has named the TOP13 best >4’x4’ high-power plant lights in North America in 2021. Let’s take a look at who won the titles and provide our comments of these products. TSL ROI-E720 from Growers Choice. https://www.growersc.com/roi-e720 The independent power supply design makes the lamp

What are the requirements onthe control line length of the DALI system? The length of the control line should meet the voltage drop requirements. The maximum voltage drop in the DALI system is 2V, relatively, the distance between the two farthest components in the system is 300m. For the terminal control system, the length of

The LED chip and driver are installed together, usually in small spaces and poor heat dissipation conditions. How to ensure the quality and life of the LED driver must be thought about before the design, so as to avoid the rapid failure of the LED driver. It can be said that the life of the

Horticulture lighting is not new lighting application since the era of HID, but the usage and evolution of LED lighting have fundamentally updated the industry by being able to customize the PAR for different plants, and it thus becomes one of the fastest growing markets globally especially in US and Europe. This article provides the ideas

Inrush current in LED light is one area that continues to be a concern in LED lighting. However, the truth is, inrush current does occur not only in LEDs but also in the entire power supply concept. It’s common that an MCB is triggered. So now, let’s see what inrush current and MCB means, and

The high inrush current on switching LED power supplies has become an area of concern in the lighting industry. It refers to the input current of a tiny duration that flows into the LED driver which can be regarded as a capacitive device during the power on stage. The figure below shows the typical inrush