LED consultant

LizPing is a commercial and outdoor lighting consultant. She frequently offers suggestions and instant solutions to her clients for better lighting ideas and designs.Join her via Twitter @LizPing if you have any problem or question about LED light bulbs.

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It is very important to pay attention to the efficacy and lumen output rather than the power wattage when buying LED lighting.

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Technology: How Do LIFI Light Source Work?

Introduction of LIFI

LIFI is a new class of high intensity light source of solid state design bringing clean lighting solutions to general and specialty lighting. With energy efficiency, long useful lifetime, full spectrum and dimming, LIFI lighting applications work better compared to conventional approaches. This technology brief describes the general construction of LIFI lighting systems and the basic technology building blocks behind their function.

Construction of LIFI

The LIFI product consists of 4 primary sub-assemblies: •    LED Bulb •    RF power amplifier circuit (PA) •    Printed circuit board (PCB) •    Enclosure The PCB controls the electrical inputs and outputs of the lamp and houses the microcontroller used to manage different lamp functions. An RF (radio-frequency) signal is generated by the solid-state PA and is guided into an electric field about the bulb. The high concentration of energy in the electric field vaporizes the contents of the bulb to a plasma state at the bulb’s center; this controlled plasma generates an intense source of light. All of these subassemblies are contained in an aluminum enclosure.

Function of the bulb sub-assembly

At the heart of LIFI is the bulb sub-assembly where a sealed bulb is embedded in a dielectric material. This design is more reliable than conventional light sources that insert degradable electrodes into the bulb. The dielectric material serves two purposes; first as a waveguide for the RF energy transmitted by the PA and second as an electric field concentrator that focuses energy in the bulb. The energy from the electric field rapidly heats the material in the bulb to a plasma state that emits light of high intensity and full spectrum.

Conclusion

The design and construction of the LIFI light source enable efficiency, long stable life, full spectrum intensity that is digitally controlled and easy to use.

From: Luxim

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This beautiful melt LED light bulb is designed/created by Keita Ogawa,  and it looks like it's melting when using it, and it will remind you to be eco-friendly, don't waste energy, turn off the lights when you leave.

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LEDs are the best choice for lighting, because they are energy-saving, eco-friendly, long-lasting, and more.

Lighting EVER use top brand LED, including CREE, Samsung, Sharp, Osram, Philips, BridgeLux, Epistar and so on.

Lighting EVER Products get top certifications, including UL, FCC, TUV-GS, CE, ROSH, PSE and so on.

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Lighting Ever a rising LED manufacturer and dealer who are aimed to provide high end products and services to global customers. In the present, our product range contains LED Flashlights, LED Bulbs, LED Car Lights and Outdoor Lighting, etc. For more details of our products, please visit our websites: US: http://www.lightingever.com/ UK: http://www.lightingever.co.uk/

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Lighting EVER offers wide range of top quality LED light bulbs (standard A style, GU10, MR11, MR16, GU5.3, G4, GU4.0, E12, E26, BR20, BR30, BR40, PAR20, PAR30, PAR38, Candle LED bulbs, etc.), LED tube lights, lighting fittings and fixtures (recessed lighting, downlights, under cabinet lights, bay light, ceiling light, flood lights, strip lights, headlamps, flashlights and so on). Better lighting, Better life.

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More LED Street Lights in New York City

Since LED Lights are energy saving, long lasting, etc (you could know more advantage from this page), New York City's 250,000 street light fixtures are going to be replaced with LEDs in the next 5 years. The 250,000 new LED streetlights are expected to be the largest LED retrofit in the country and save about $6 million in energy and $8 million in maintenance a year, according to the Bloomberg Administration. For hight quality LED lights at low price (for example, you can get a 3.6 watts gu10 led bulb for $5.99 only), you could go to lightingever.co.uk

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Pros and Cons of CFLs

CFLs (and fluorescent tube lights) are lit by an electric current that is sent through a tube containing argon and a small of amount of mercury gases. This in turn generates an invisible ultraviolet light, which then stimulates a fluorescent coating on the inside of the tube, producing visible light.

PROS:

Longevity - With an average lifespan of approximately 10,000 to 15,000 hours, a CFL bulb lasts about ten times longer than an incandescent bulb—which means they need to be replaced less often, making them convenient for those hard-to-reach light fixtures and lamps. Efficiency - “CFLs are about four times more efficient than the equivalent wattage of incandescent bulbs,” says Naomi Miller, the senior lighting engineer at the Pacific Northwest National Laboratory in Portland, OR. “So if you take the wattage of the CFL and multiply it by four, that equals the incandescent bulb you would replace. So, for example, a 15W CFL is roughly equivalent in light output to a 60W incandescent bulb.” According to the Environmental Protection Agency (EPA), if every household in America replaced just one incandescent bulb with a CFL, the energy saved would be enough to light 3 million homes and prevent greenhouse gas emissions from the equivalent of 800,000 cars. Price - CFLs have dropped dramatically in price since they were first introduced to the market in the 1980s. They still cost a little more than incandescents; however, they will pay for themselves after a year or two of use (see box at left). Because they last so much longer than incandescents, you will continue to see savings on your energy bills throughout the life of the bulb. CONS:

Mercury concerns - Many people are concerned about the mercury in CFLs, and with good cause: mercury is a neurotoxicant. The amount in a CFL bulb, however, is smaller than the tip of a pencil. Widespread use of CFL bulbs instead of incandescents will actually reduce the amount of mercury released into the atmosphere, since the main source of mercury emissions are smokestacks from fossil fuel burning power plants, according to the EPA. CFLs pose little risk to your family if they break, but proper clean-up is important (see below). Some usage limitations - CFLs are not dimmable, and they are not efficient in recessed lighting, where they waste about half of the energy they produce. To maximize their efficiency, avoid exposing them to extreme temperatures. The Bottom Line:

Many experts view CFLs as a placeholder for LED lights, because LEDs are even more efficient. Currently, CFLs come in more shapes and sizes than LEDs, but with ever-improving technology, many scientists think LEDs will be competitive within two to three years. For the time being, CFLs are the best replacement for incandescent bulbs in most situations; just make sure they are disposed of properly at the end of their life cycle.

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This is a simple and low-cost way for Halloween decorating lighting, you could easily get it done with tree branches and a LED light bulbs from lightingever.

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Choosing Pendant Lighting for your room, Which light to buy? Here's the things you need to consider for buying a pendant light.

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Reasons Why We Use LEDs

No EMI (electromagnetic interference)

No mercury (a chemical, which can cause severe brain damage and growth defects in adults and children)

Solid (harder to break)

Don’t flicker (flickering might give you headache)

Instant on (and reach full brightness)

Quality of light (more warm white: no more cool white)

Make you look more attractive (you may need it)

Silent (no buzz: no hum m…mm)

Dimmable (you are in control of your light)

Control (yeah, you are in control again)

Color range (she is like a rainbow)

Highly directional (can be configured for multiple purposes)

Energy-efficient (up to 80% more efficient than incandescent)

Last longer (forget about changing your light bulbs!)

Reduce electric bill (wouldn’t it be nice?)

Save on maintenance (don’t have to get up that ladder any time soon)

Good for the planet

Please recycle

Cool to touch (don’t burn yourself when you turn your lamp off)(while we still don’t recommend touching your light bulbs)

Less heat (bonus: lower AC bill. Yap!)

No fire hazard

Work hard (and always pay for themselves)

Great in severe conditions (make sure they are properly labeled)

  That’s the reason why we use LED lights, shop now for high quality LED bulbs from lightingever.co.uk at low prices.

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Significant Change Made by LED Lights

The U.S. Department of Energy (DoE) did a study of how much electricity was saved last year thanks to the use of LED in nine kinds of applications (various kinds of indoor lights, streetlights, etc). The numbers are very impressive: "In 2012, about 49 million high quality LED lights and luminaires were installed in the nine applications. LEDs in these markets saved approximately 71 trillion British thermal units (tBtu), equivalent to an annual energy cost savings of about $675 million"!

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Fantasty LED Lamp That Recognizes Your Gestures: No Jedi Powers Required: The long strip of LEDs can be individually activated depending on how much illumination you need, or you can just easily wave your hand along its length to activate them all. Their warm white glow is energy efficient, and for those times when you want a secret midnight snack without waking anyone up, you can just turn on a single dot of light. After all, your make-believe Jedi powers only work on lamps, not memories.

From: gizmodo

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Color temperature is a description of the warmth or coolness of a light source. When a piece of metal is heated, the color of light it emits will change. This color begins as red in appearance and graduates to orange, yellow, white, and then blue-white to deeper colors of blue. The temperature of this metal is a physical measure in degrees Kelvin or absolute temperature. While lamps other than incandescent do not exactly mimic the output of this piece of metal, we utilize the correlated color temperature (or Kelvins) to describe the appearance of that light source as it relates to the appearance of the piece of metal (specifically a black body radiator).

By convention, yellow-red colors (like the flames of a fire) are considered warm, and blue-green colors (like light from an overcast sky) are considered cool. Confusingly, higher Kelvin temperatures (3600–5500 K) are what we consider cool and lower color temperatures (2700–3000 K) are considered warm. Cool light is preferred for visual tasks because it produces higher contrast than warm light. Warm light is preferred for living spaces because it is more flattering to skin tones and clothing. A color temperature of 2700–3600 K is generally recommended for most indoor general and task lighting applications. Color Temperature is not an indicator of lamp heat. Learn more about the Bulb Color Temperature