Category: LED Knowledge

LED Knowledge

Perché le luci a filamento non sono così efficienti come le luci a LED

Perché i LED sono più efficienti delle lampadine a incandescenza?

I LED non irradiano quasi calore, quindi sono molto più efficienti delle normali lampadine a filamento. Pertanto, la percentuale di elettricità utilizzata è molto più alta di quella delle lampadine a filamento, perché le lampadine a filamento alla fine genereranno una notevole quantità di elettricità che viene convertita in calore.

 

Al momento, molti paesi stanno gradualmente introducendo divieti sulle lampadine a incandescenza e il divieto è stato introdotto alla fine del 2021.… Read More

LED Knowledge

How LEDs Produce Colored Light

How LEDs Produce Colored Light

The luminous color and luminous efficiency of LEDs are related to the materials and processes used to make the LEDs. At present, three colors are widely used: red, green and blue. Due to the low operating voltage of the LED (only 1.5-3V), it can actively emit light and has a certain brightness. The brightness can be adjusted by voltage (or current), and it is resistant to shock, vibration and long life (100,000 hours).… Read More

LED Knowledge

Wofür wird grünes LED-Licht verwendet?

Wie strahlt eine LED rotes, grünes und blaues Licht aus?

Die Lichtfarbe und die Lichtausbeute von LEDs hängen mit dem Material und dem Prozess der LED-Herstellung zusammen. Gegenwärtig sind Rot, Grün und Blau weit verbreitet. Da die Betriebsspannung der LED niedrig ist (nur 1,5-3 V), kann sie aktiv Licht emittieren und hat eine bestimmte Helligkeit. Die Helligkeit kann durch Spannung (oder Strom) eingestellt werden.… Read More

LED Knowledge

LED Basic Terms VF, IV, WL, IR Meaning Explanation

Basic Terms for LEDs VF, IV, WL, IR

V stands for voltage.

F stands for positive.

I stands for current.

R stands for reverse.

WL stands for wavelength.

Therefore: VF represents the forward voltage. Generally, the vf of low-power led red, yellow, orange, and yellow-green is 1.8-2.4v, and the vf of pure green, blue, and white is 3.0-3.6v.

IF is the forward current.… Read More

LED Knowledge

Luminaires résistants aux hautes températures

Qu’est-ce qu’une LED haute température

Des usines de pâtes et papiers, des fonderies aux aciéries, de nombreux environnements industriels sont des endroits où la chaleur et la température sont élevées. Et, bien que la plupart des lumières faiblir dans cet environnement difficile, les LED à haute température ont émergé face à cet environnement le plus difficile.

Y compris les lampes allant des projecteurs à LED aux luminaires pour grande hauteur et à faible hauteur, il existe plusieurs options pour chaque application.… Read More

LED Knowledge

Photoelectric Properties of LEDs for Lighting

1. Introduction

A light-emitting diode (LED) is a solid-state device that converts electrical energy directly into light. Its structure is mainly composed of P-N junction chips, electrodes and optical systems.

The performance of LED for lighting is different from that of LED for display. Its main characteristic parameters include: working current and voltage, output luminous flux, luminous efficiency, chromaticity coordinates, color temperature, color rendering, spatial light intensity distribution, temperature characteristics and light biosecurity, etc.… Read More

LED Knowledge

Hvordan hjælper energibesparelse miljøet

At fremskynde transformationen af ​​den omfattende væksttilstand, der er karakteriseret ved “høje investeringer, højt forbrug, høje emissioner, vanskelige at genanvende og lav effektivitet” og at tage vejen for videnskabelig udvikling er blevet et presserende krav for international økonomisk og social udvikling, og det er også en grundlæggende måde at nå målet om energibesparelse og forbrugsreduktion.

 

LED-belysning energibesparende renoveringsplan

Med udviklingen af ​​den sociale økonomi bliver energi mere og mere spændt, miljøforurening bliver mere og mere fremtrædende, energibesparelse, forbrugsreduktion, miljøbeskyttelse og bæredygtig udvikling er blevet hovedtemaet for udviklingen af ​​det internationale samfund.… Read More

LED Knowledge

Optical Index of LED

1. Three Representations of the Color of Light

  • International Commission on Illumination Chromaticity Diagram Representation
  • Color vividness of light
  • Color temperature or correlated color temperature

They will be introduced one by one below.

International Commission on Illumination Chromaticity Diagram Notation

The International Commission on Illumination (CIE) proposed the XYZ chromaticity diagram in 1931, and in 1960 proposed the UCS chromaticity diagram based on the XYZ chromaticity diagram.… Read More

LED Knowledge

LED-valojen valovaikutus

Mikä on LED Lumen

Lumen, se on valovirran yksikkö, eli ihmissilmän havaittava energia, jonka valolähde säteilee ympäröivään tilaan aikayksikössä. Symboli on Φ ja 1 lumeni vastaa 1/680 W monokromaattisen valonlähteen säteilemää energiaa.

Valonmitta ja yksikkö

  • Valovirta (φ) Valonlähde säteilee energiaa, joka saa ihmissilmän tuntemaan aikayksikköä kohti, jota kutsutaan valovirraksi. Sitä edustaa symboli φ, ja käytännön yksikkö on lumenia (lm), jota kutsutaan virtaukseksi.
… Read More
LED Knowledge

How to Choose a Suitable LED Dimming Driver for Lights

Choose Constant Current or Constant Voltage Dimming Power Supply?

LEDs are more and more widely used in lighting fixtures. In addition to the uniqueness that is superior to traditional lighting methods, in addition to improving the quality of life, improving the efficiency of the light source and prolonging the life of lamps advantage.

The dimming efficiency of LED lighting fixtures depends on the matching dimming power supply, so how to choose a suitable LED dimming power supply?… Read More