Tesla Electric - Residential Electrical Services
  • Collingwood

    705-302-9249

    55 Barker Blvd
    Collingwood, ON L9Y 4W4
  • Toronto

    416-535-5845

    1010 Bathurst st.
    Toronto, ON M5R 3G7
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Design

A light-emitting diode (LED) is an electronic component that emits light when an electric current passes between two poles. LED is an advantageous option because the process used to transform electrical energy into light produces very little heat, contrary, to incandescent bulbs.

Applications

LED lamps can replace all other light sources. Their lifespan is very long and they are an interesting choice for hard-to-reach locations.

Lifespan

Because LED lamps are not subject to normal wear, their lifespan generally extends from 25,000 to 100,000 hours. A luminaire featuring LED lamps alone has an estimated service life of 50,000 hours, determined at 70% of its remaining initial light output. This number is calculated by taking into consideration performance, production cost and the life cycle of the lamp.

Dimming (or decreasing light intensity)

Standard dimmer controls may be used with LED lamps and it is generally possible to vary the light intensity of LED lamps over a range of 10% to 100%. Of course, it is also possible to decrease the light intensity to 1%, but systems used to achieve this are high-end and very costly. Using a dimmer control with a LED lamp always increases its lifespanbecause less heat is dissipated.

To avoid complications during construction, manufacturer specifications should be consulted to specify which dimmer models to use, as well as brands and compatible models. This way, the customer will acquire a tested, reliable, noise-free system and the assurance of the manufacturer’s guarantee in the event of breakage.

Color temperature

All colors may be applied to LED lamps. White light, however, is obtained indirectly through different means. Generally speaking, the warmer the color temperature the less efficient the LED. This means that a 4000K LED will have a better color rendering index than a 2700K LED.

Price-quality ratio

At the present time, LED lamps have a light efficiency of 40 to 70 lumens per watt, but this promising technology of the future should soon reach 120 lumens per watt. Compared to fluorescent and HID lamps, the lifespan of the LED makes it an interesting option for any application.

LED lamps cost more than other light sources because of the materials used in their production (sapphire, for example). On the other hand, LED lamps cost much less to operate and maintain, making them affordable choices for commercial and industrial applications.

The use of LED lamps in the home is on the rise. Recent developments have culminated in more productive manufacturing processes and the use of less costly materials, leading to lower prices for this kind of lamp. Indeed, Philips and CREE, two important lamp manufacturers, have estimated that LED technology should be present in 35% to 45% of the lighting industry by 2015.

Color rendering index (CRI)

The color rendering index (CRI) for LED lamps is generally quite good, ranging from 70 to 98 CRI. However, the method of measuring CRI is currently being revised because it seems that it is not very well adapted to LED sources.

Instant start

LED lamps turn on and turn off instantly. However, because LED lamps are degraded by the heat they emit, their intensity drops until their temperature stabilizes. That is why, the light is stronger when they are turned on.

Shock resistance

The electronic components of LED lamps are rigidly supported on an electronic board, making them very sturdy.