150 lumen per watt Led Tube lights – Not that there is anything wrong with the old sodium-discharge lamps. Producing practically all their light at a wavelength near the peak sensitivity of the human eye gave them a theoretical luminous efficacy of 200 lumens per watt of electricity consumed, though...

Lamps are often rated by: Power consumption and light output – in Watts (Unit of electricity consumption), Lumens, Lux or Candela (Units of light output), Lumens per Watt (A derived unit that indicates the luminous efficiency of the lamp). Color Rendering Index – A measure of how effi...

Color Rendering Index or CRI, light temperature, Stoke’s shift, are terms that are often used by manufacturers to promote their lighting products. There are CRI and Color Temperature wars waging in the cyberspace to defend incandescent bulbs against the onslaught of legislation and energy efficient ...

1 Forward Current If:It refers to the positive value of forward current normal light emitting diodes when . In actual use, should be selected in 0.6 ? IFm IF less .2 forward voltage VF:Parameters given in the table operating voltage is at a given forward current to get. Generally in the IF = 20mA wh...

With the continuous development of LED technology, people adapt to the development of large-area lighting and power growing single LED chip, currently the world's most cutting-edge single LED can already do more than 200W power, although power can do it , but its cost and poor. Below we have several...

Wall Lights - Overview     In the impression of many people, LED wall lights are almost dispensable in the home. But if you understand the characteristics of the LED wall light, you can still make the LED wall light glow with a unique brilliance. For example, the layout of man...

LED junction temperature, what is the LED junction temperature, what causes the LED junction temperature, and what are the ways to reduce the LED junction temperature? The following will analyze in detail 1. What is the junction temperature of the High power LED? The basic structure of High power LE...

A Light Emitting Diode (LED) is a semiconductor device which converts electricity into light. LED lighting has been around since the 1960s, but is just now beginning to appear in the residential market for space lighting. At first white LEDs were only possible by “rainbow” groups of three LEDs — red...

LED is a semiconductor device itself, all of the semiconductor device has a normal operating temperature requirements, including ambient temperature and operating temperature. Ambient temperature semiconductor devices generally have less than 80 degrees of normal, while the internal LED PN junction ...

Cob integrated light source is chip on board, bare chips are glued to the Interconnect substrate with conductive or non-conductive adhesive, and are welded with the golden wires together, which realizes an electrical connection.The features of COB integrated light source as following:1.  Throug...