1. Brief development of LED for illumination Generally Speaking, LED stands for Light-Emitting Diode. 1.1 DIP The first LED designed for illumination was the dual in-line package (DIP) LED, which is also called a “straw hat LED.” Its light efficiency was relatively low at that time – only about 4-5 lumen per unit or 0.05-0.08 […]
We invite you to browse the glossary below which contains accessible definitions of the terms that are commonly used in the world of lighting, design and architecture. The descriptions for the terms, acronyms and nomenclature represent the meanings understood and shared by a majority of the lighting design community.
inspect illumination changes within 30 minutes. (An illumination measurement in 30 minutes) To judge whether heat sink performance of a LED lamp is good or not, the most direct method is to measure the temperature of led chips when the lamp is on whose technical term is “junction temperature”, and obviously it is only a theory. Maybe […]
The G4 lamps are types of the bi-pin or two-pin standard, defined by the International Electrotechnical Commission (IEC). These types of lamps have two pins at the input. The number 4 in the name indicates the center-to-center distance between two pins, which is 4mm in this type. The alphabet G is used to indicate that […]
The lifespan of a LED lighting depends greatly on the amount of heat level, by virtue making of advancement of the heat level is one the vital technologies. However there are complex issues when it comes to solving of problems related to heat generated by the cheap over the heat sink, and that of cooling […]