물리학 (전자기학 (회로이론 · 전자 회로 · 논리 회로) · 양자역학 · 물리화학 · 열역학 · 응집물질물리학) · 화학

The higher the temperature at which the LEDs are operated, the more promptly the light will degrade, plus the shorter the handy existence might be.

leading to a considerable modify in shade stability. This sort of challenges inhibit industrial use. Multicolor LEDs without the need of phosphors are unable to deliver great coloration rendering because Just about every LED is a narrowband source.

Also, a label will from time to time (but not usually) tell you that an LED bulb has an equal brightness. Check with the charts below for a ready reference. Finally, please Take note that all VOLT® out of doors LED light-weight bulbs hold the incandescent or halogen equivalent wattage displayed on their product or service web pages. We make switching to LED landscape lighting simple!

外观 资助维基百科 创建账号 登录 个人工具 资助维基百科

Red LEDs have the flattest I/V curve earlier mentioned the knee. Nitride-dependent LEDs have a fairly steep I/V curve and are worthless for this intent. Despite the fact that LED forward voltage is considerably more present-day-dependent than a Zener diode, Zener diodes with breakdown voltages beneath three V will not be extensively out there.

기여하신 문서의 저작권은 각 기여자에게 있으며, 각 기여자는 기여하신 부분의 저작권을 갖습니다.

Whilst CFLs and incandescent bulbs are restricted to the colour in their enclosure, some LED bulbs is usually changed to emit numerous hues.

Easy LED circuit with resistor for latest limiting The present within an LED or other diodes rises exponentially Using the utilized voltage (see Shockley diode equation), so a little alter in voltage can cause a substantial improve in present. Latest through the LED has to be controlled by an external circuit for example a relentless present supply to circumvent harm.

With the event of large-efficiency and significant-electrical power LEDs, it has become probable to work with LEDs in lighting and illumination. To really encourage the shift to LED lamps as well as other higher-performance lighting, in 2008 the US Department of Electrical power designed the L Prize Competitors.

Light can leuchtstoffröhre 150cm be utilized to transmit info and analog indicators. As an example, lighting white LEDs can be used in systems helping men and women to navigate in closed spaces though hunting important rooms or objects.[a hundred]

전기기능장 · 건축전기설비기술사 · 발송배전기술사 · 전기응용기술사 · 전기안전기술사 · 철도신호기술사 · 전기철도기술사

The energy amount of the Conduction band is larger compared to the Electricity amount of the Valence band. Consequently, if electrons tend to recombine with holes they've to lose some Section of the Strength to fall in reduced Power band.

따라서 산업용이나 전문가용 제품을 제외하고는 딱 기준에 맞는 수준의 저렴한 부품을 사용하여 만들고 소비자들도 얼마 못 쓴다는 것을 알고 구매하는 것이 현실이다.