Light makes our life easy. While nowadays, light not only functions as illumination, but also aesthetic means to make life beautiful. Our dual color LED strips and RGBWW 5-in-1 LED strips are able to create hundreds of different lighting ambience...
LED soft ribbon is getting popular due to its flexibility, and YUJILEDS® also offers flexible ribbon based on its remarkable color reproduction quality. With the increasement of different applications, special environments are required for using the LED ribbons, then water-tightness...
Tighter chromaticity tolerance is always pursued by LED manufacturers since color consistency is getting more and more important. A general method is keeping the SDCM (Standard Deviation Color Matching) as a large scale, then divide it into small sections to...
Why heat sink is important for LED lights? LED, Lighting Emitting Diode, is the semiconductor component which can transfer the electric energy into light. However, in the process of power transfer, apart from emitting lights, there is lot of power...
PART V: “LIFETIME” Lifetime is a critical index for evaluating lighting fixtures. Conventional lighting fixtures are relatively inexpensive, of which the most widely adopted type is the fluorescent light, with only 3000 hours’ longevity. Compared to that, LED lights are...
PART IV: “COLD LIGHT SOURCE” Before LED lighting technology came to maturity, greenhouses were the major form of artificial plant factories. In greenhouses, temperature condition can be better controlled than plants grown outside, and sunlight is obtained during the day...
PART III: Light Quality Compared with the factor of LED viewing angle we discussed last time, our topic today–light quality is a more significant index in terms of which LEDs have a revolutionary advantage over conventional light sources. The emergence and growth of...
Part II: Viewing Angle In our last post, we talked about the significance of lighting for pant growth in terms of light intensity, photoperiodism and light quality. In plant growth, light intensity is expressed as photosynthetic photon flux density (PPFD)....
Part I: Background Light, just like water, soil, temperature and air, is indispensable for plant growth. Man had realized the importance of water, soil and temperature in growing plants since a long time ago, and had begun to utilize irrigation,...
Starting from June 9th 2017, the 22th Guangzhou International Lighting Exhibition 2017 (GILE 2017) held at China Import and Export Fair Complex gathered over 2,000 exhibitors from 30 countries. Within 18 halls and over 2000 booths, extensive knowledge, up-to-date...
Technology develops because of human needs, and it raises new needs of human. Because of our desire for brightness and fear of darkness, artificial lights came along. Due to limitation of technologies, the original pursuit of artificial lights was illumination....
Recently, the International Commission on Illumination (CIE) released the CIE 2017 Color Fidelity Index for Accurate Scientific Use. The CIE Color Rendering Index (CRI), in particular the general color rendering index, Ra, is widely adopted and used by the lighting...