Technology

Lifetime of LED Lighting

The useful life of LED lighting products is defined differently than that of other light sources, such as incandescent or compact fluorescent lighting (CFL). LEDs typically do not “burn out” or fail. Instead, they experience ‘lumen depreciation’, wherein the brightness of the LED dims slowly over time. Unlike incandescent bulbs, LED “lifetime” is established on a prediction of when the light output decreases by 30 percent.

Energy Efficiency

Today’s most efficient way of illumination and lighting, with an estimated energy efficiency of 80–90 percent when compared to traditional lighting and conventional light bulbs. This means that about 80 percent of the electrical energy is converted to light, while 20 percent is lost and converted into other forms of energy such as heat.

Eco-Friendly and Environmentally Safe

Traditional lighting products have a lot of environmental issues associated with them. The hazardous and toxic chemicals like mercury contaminate the environment when such lighting products are not correctly disposed of. Change fluorescent light to LED lights for an ethical and eco-friendly step towards creating a toxin-free and safe environment.

Great Colour Rendering Index (CRI)

CRI is a measurement of a light’s ability to reveal the actual colour of objects, as compared to an ideal light source (natural light). High CRI is generally a desirable characteristic (although, of course, it depends on the required application). LEDs generally have very high (good) ratings when it comes to CRI.

Safe for Your Eyes

Light-emitting diodes (LED) use short wave light, often called “cool” in colour. LED light’s description as cool comes in comparison to traditional home lighting, often called “warm.” The cool light comes from the blue part of the colour spectrum. The Daily Mail reports “that prolonged, continuous exposure to this light may be enough to damage a person’s retina.”

Colour Temperatures

Task lighting is used to provide an additional, higher level of light than the surrounding area where a visual task takes place. It is therefore important that the light is able to create good contrast, which is best achieved with a neutral to cool white in the 3500K to 5000K range. Besides the colour temperature, the colour rendering index (CRI) and brightness are particularly important for task lighting. While for ambient lighting a CRI of 80+ is often sufficient, for task lighting a CRI of 90 and above should be considered. Food that gets prepared on a kitchen counter will look much more appealing when rendered well by the under cabinet light. A makeup light with good colour rendering will also paint a more realistic picture.

Brightness

First off, we have to let go of the misconception that wattage equals brightness. While for incandescent bulbs wattage and brightness had a direct correlation, this is not true for LED products and since LED’s consume much less power (Watts), it’s impossible to compare brightness of an incandescent and an LED bulb based on wattage. So the only factor to pay attention to when looking for brightness of an LED light is Lumens. Lumen is the unit of measure for brightness and tells us how much light a particular lighting product emits. For reference, a typical incandescent 60 W bulb emits approximately 800 lumens. For more details, contact us at support@alongeng.com

 

With more than 10 years in the lighting industry, ALongDeng leverages the latest lighting technology and design art, to make the best LED lamps that are bright (usually 20-50% than other LED lamps), energy-saving (money-saving as well), and eyes-friendly. We are dedicated to providing people a better living brightness and better lives.