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  • Lighting FAQs

    A : Light-emitting diodes (LEDs) are solid-state lighting components. Each LED consists of a semiconductor diode that emits light when a voltage is applied to it. They have no moving, fragile parts and can last for decades. LEDs can be many times more energy-efficient than light bulbs, depending on the application. LED lighting can save up to 85 percent of the electricity used by incandescent bulbs and up to 50 percent of electricity used by fluorescents. Technically, a semiconducting chip is doped (intermixing impurities into a semiconductor of high purity levels to modulate electrical properties) to create what is called a p-n junction. The ‘p’ represents the anode from which electrons flow into the ‘n’ or cathode. “Charge carriers” taking on the form of ‘holes and electrons’ flow into the p-n junction where upon electrons to fall into holes of a lower energy level, causing energy to be liberated in the form of photons. This process, known as electroluminescence, leads to light being generated. 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. Since LEDs consume significantly less energy, they don’t emit as much heat. That’s why you typically won’t burn yourself if you try to touch an LED light once it’s turned on. LED lights are also designed to last about 50 times longer, which means less ladder-climbing maintenance and less waste.
    A : As a rule, LED bulbs use 90% less electricity than standard bulbs. They have an unparalleled even spectrum of light and have a lifespan beyond ten years. LEDs provide us the most efficient way to save energy and conserve our natural resources. If LEDs were implemented right now universally, we would not need to build another power plant. LEDs would actually eliminate the need for over 30 existing power plants!
    A : LEDs bring several advantages, 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. There is also the potential for greater optical control (more controllable source), dimming, instant on/off, and reduced rate of lumen depreciation (potential for long application life).
    A : Most LED Lighting products are designed to last as long from 25,000 to 50,000 hours. This incredible longevity means that you might never change another light again so frequently.
    A : The usual length of time that LED lights last is generally between 30,000 to 50,000 hours. This length of time can vary somewhat depending upon the quality and type of driver used and the number of power surges and electrical fluctuations that the lights are exposed to.
    A : It is 50 times the life of a typical incandescent bulb and 5 times the lifetime of an average compact fluorescent lamp (CFL). In fact, if you ran one LeKise LED lamp for 6 hours per day every day, it would last for nearly 23 years. Reduce Maintenance and Labor We all have at least one bulb that is hard to reach and needs a ladder or a pole to replace it. For a home owner, fifty times longer life than incandescent bulbs means 50 fewer chances to fall off a ladder. For a business owner, this translates to significantly lower maintenance and labor expenses. Reduce Your Waste Stream The production and use of LEDs requires significantly less energy than incandescent or CFLs. With LeKise LED Lighting products, you'll throw away fewer lamps and stop worrying about their mercury content.
    A : Useful life has been defined as the number of hours an LED device can operate until it emits only a certain percentage of its original lumen output. For general illumination applications, vision research suggests that 70 percent of original lumen output is the level where end users begin to notice a drop in light levels.
    A : 'Wet' locations are defined as being exposed to non-climate controlled environments, wind driven rain and/or pressurized water, and condensing moisture. 'Damp' locations are defined as being exposed to non-climate controlled environments, minimal water exposure (few droplets), and being at least 7' from any potential standing water. 'Dry' locations are defined as less than 75% humidity and no water exposure. Please refer to the specific Product Data Sheets to determine suitable operating environments as different products are designed for use in different environment.
    A : No. Unlike incandescent and fluorescent lighting which will fail sooner when switched on and off more often, LED lighting is unaffected by how often it is switched on and off.
    A : 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 >90 CRI.
    A : LEDs innovative design provide many advantages over that of traditional light bulbs including a longer shelf life, lower energy consumption, size, and an overall improved robustness. Not only are they much more environmentally friendly compared to that of CFL and fluorescent lighting, which contain mercury and other harmful toxins, but also are available in a diverse range of styles, shapes & sizes.
    A : Considering that LEDs are made using durable, high quality materials that are designed to be shock and heat resistant, joined with the additional manufacturing costs required to produce them, LED lights are often more expensive than their inefficient conventional counterparts. This added cost is readily recouped though through an energy saving of up to 90% on household lighting costs and a much longer shelf life.
    A : Yes. Light emitting diodes are designed in such a way that enables small amounts of electricity to efficiently generate a large amount of light. LEDs innovative design converts approximately 90% of the electricity used into light, whereas traditional incandescent and florescent lighting technologies utilize a mere 10 – 15% of the electricity, with the rest being lost as heat. This leads to LEDs being much more efficient and heating up to a much lesser extent.
    A : When purchasing it is important to know what kind of light fittings you currently have installed in your home or business and to purchase lights with that kind of fitting. For example, if your household lighting currently has GU10 light fittings then you will need to purchase GU10 LEDs, otherwise the light will not fit.
    A : Prior to LED lights coming onto the marketplace the mainstay energy efficient lighting source came in the form of a CFL, or Compact Fluorescent Light. Despite being efficient, they are in effect quite similar to neon fluorescent tubes predominantly used in kitchens and office spaces. Such lighting gives off a blue-white luminescence and uses much less energy than other conventional lighting sources such as incandescent and halogen lights. Despite this, CFL and fluorescent light sources contain mercury and a variety of other harmful materials that are detrimental to ones’ health. Being made from glass these lights can and often do break making them a significant health and safety issue for households and businesses alike. LEDs on the other hand do not contain such toxic materials, come in a wide variety of stylish designs, are durable and do not flicker like CFL and Fluorescent lights.
    A : LEDs work differently than traditional lights and they do not use a filament. Traditional lighting sources have a filament that heats up, and upon doing so it produces light. Incandescent bulbs continually repeat the heating cycle, which causes the filament to fail. Since LEDs do not have filament within them, but rather a semi-conductor diode, they can last for more than 50,000 hours. Instead of burning out, after many years, these lights will simply begin to fade.
    A : YES. The majority of our lighting products are dimmable and can readily be integrated into your existing household fittings, providing you have a dimmable lighting system already in place.
    A : The reason why some lights require transformers and others do not is due to how the buildings wiring is set up. Most households use high voltage 240V AC, which is more compatible with the majority of appliances and electrical goods sold on the marketplace. MR16 lights run on 12V Direct Current (DC) and as a result will require a transformer if used within a 240V wiring system. Conversely, GU10, E27 & B22 LED lights operate on 240V Alternating Current (AC) and as such will not require a transformer to operate if you have a 240V electrical system set up. Prior to purchasing LEDs it is always prudent to find out how your house hold wiring system is set up to determine which type of light fitting you will require.
    A : When choosing an LED it is important to consider what type of beam angle would work best for the area being lit. If the beam angle is too low (less than 45 degrees) then the beam of light will concentrate over a much smaller area, producing a spotlight appearance. Such a beam angle results in limited light distribution for a larger room, but often works well for areas such as kitchen benches or bathroom mirrors which may require such lighting. For general household or business lighting applications having a larger beam angle (60 degrees) is the best option. A beam angle of this variety results in the light illuminating much more of the room and this is often the preferred option for the majority of room types.
    A : No. LED bulbs do not contain mercury. They can actually be recycled as they do not contain hazardous substances and are manufactured without hazardous substances.
    A : Studies show LED light bulbs use 50% less energy than CFL bulbs and in many cases last 10 times longer than CFL light bulbs. They are much more durable, environmentally friendly, vibration and shock resistant and offer excellent light quality, both indoor and outdoor.

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