LED Lighting - FAQ's

We seek to answer below some of the commonly associated queries that you may have with regard to LED Lighting:

What is an LED?
LED is the common abbreviation for a Light Emitting Diode. Each individual LED consists of a semiconductor diode that emits light when a voltage is applied to it. They have no moving or fragile parts and can last for decades. Most of the energy emitted from incandescent bulbs is converted to heat instead of light. That’s why you’ll burn yourself if you try to touch an incandescent bulb once it’s turned on. This is not the case with an LED Light - since LED’s consume significantly less energy, they don’t emit as much heat.

Where have LED’s been used in the lighting industry?
LED’s began to be used in the lighting industry in the late 1990’s typically in aesthetic, effect, or specialty lighting applications, including architectural highlighting. The use of LED luminaires in applications such as street lighting, area lighting, parking structures, security lighting, and even general lighting for interior spaces is viable today both economically and from an illumination performance standpoint.

What are the advantages to using LED luminaires?
LED’s bring several advantages to the lighting industry, including high efficacy and durability, and, with superior life over other lamp sources, their required maintenance is greatly reduced. This translates into energy savings, maintenance savings, and environmental sustainability.

Why are LEDs considered a GREEN technology?
LED’s are environment-friendly on many fronts. First, unlike Metal Halide and CFL lamps, LED’s contain NO mercury. In addition, some LED luminaires are RoHS (Restriction of Hazardous Substances) compliant and have been designed to provide more than a decade of near maintenance-free service. That means no re-lamping, which means no waste.

What is CRI, and why is it important?
Color Rendering Index (CRI) is defined as a light sources ability to render color. The higher the CRI, the better the light source renders every color in the visible spectrum. To have what is generally considered good color rendering, a source must be >80 CRI.

How does the brightness of LED Lighting compare to incandescent lighting?
LED light bulbs are much brighter than incandescent or halogen bulbs of the same wattage, but LED bulbs are not available in very high wattages. Thus, when replacing incandescent or halogen lamps with LED lamps, more LED lamps are often needed. For example, to replace one 100-watt incandescent bulb you may need two 5-watt or 6-watt LED bulbs. Although you have more bulbs you are still using 85% less electricity.

Are bulbs with more LED’s brighter than bulbs with less?
The number of LED’s is not the determining factor of bulb brightness. Different types of LED’s vary greatly in size and light output. The most accurate indicators of the brightness of LED bulbs are the measured lumens or lux. Lumens measure the total amount of light output from a bulb. Lux measures how bright the light is on a surface at a specified distance.

How are LED products evaluated?
To fully evaluate an LED product one needs to review the overall system efficiency, optical control, thermal management of the LED’s, and know at what point in time the fixture will reach 30 percent lumen depreciation. Products with good optical efficiency and thermal management will be able to deliver more lumens, on average, than traditional High Intensity Lighting products.

How efficient are Q-LED lights?
Q-LED Lighting products can deliver the same amount of light using as little as 20 to 25% of the power. This huge reduction in energy consumption can enable consumers to save thousands of Rupees over the life of each light.

How can Q-LED lights make my life easier?
Q-LED Lighting products are designed to last as long as 50,000 hours. Such levels of longevity means that you might never have to change that light again. 50,000 hours is equivalent to 50 times the life of a typical incandescent bulb and 5 times the lifetime of an average compact fluorescent lamp (CFL).

Is each Q-LED Lighting product tested before it is shipped?
Yes, each Q-LED Lighting product is individually tested and tuned to optimal performance parameters before shipment.