#AskEnergySaver: LED Lights


LED lights are six to seven times more energy efficient than conventional incandescent lights, cut energy use by more than 80 percent and can last more than 25 times longer. | Photo courtesy of Dennis Schroeder, NREL.

To help you save money by saving energy, we launched #AskEnergySaver — an online series that gives you access to some of the Energy Department’s home energy efficiency experts. During 2014, experts from the Department and our National Labs will be answering your energy-saving questions and sharing their advice on ways to improve your home’s comfort.

Continue reading…

https://energy.gov/articles/askenergysaver-led-lights

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InSpecIT Inc.

Unit 719/722 City & Land Mega Plaza Bldg.

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The Basics of Light Emitting Diodes or LED


LEDs are all around us: In our phones, our cars and even our homes. Any time something electronic lights up, there’s a good chance that an LED is behind it. They come in a huge variety of sizes, shapes, and colors, but no matter what they look like they have one thing in common: they’re the bacon of electronics. They’re widely purported to make any project better and they’re often added to unlikely things (to everyone’s delight).

Unlike bacon, however, they’re no good once you’ve cooked them. This guide will help you avoid any accidental LED barbecues! First things first, though. What exactly is this LED thing everyone’s talking about?

Continue reading.

https://learn.sparkfun.com/tutorials/light-emitting-diodes-leds

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Jess C. Gregorio

Sales & Marketing

InSpecIT Inc.

Unit 719/722 City & Land Mega Plaza Bldg.

ADB Ave., cor. Garner Road, Ortigas Center,

San Antonio, Pasig City 1605

Philippines

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LED Light Bulbs vs. Incandescents and Fluorescents


For decades, 100-watt incandescent light bulbs have lit up hallways and bedrooms; 60-watt incandescents have shone softer light from reading lamps and closets. But incandescent lights have some problems. 

They’re inefficient, wasting lots of energy as heat, and have shorter lifespans than fluorescent lamps. Recently, compact fluorescent (CFL) bulbs have become popular alternatives to incandescent bulbs thanks to lower power consumption. 

Where incandescent lights last an average of around 1,000 hours, CFLs can last 8,000 hours. Unfortunately, CFLs contain toxic mercury that makes them potentially hazardous and a pain to dispose of [source: Design Recyle Inc].

Enter LED Lights.

Read more.

http://electronics.howstuffworks.com/led4.htm

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Jess C. Gregorio

Sales & Marketing

InSpecIT Inc.

Unit 719/722 City & Land Mega Plaza Bldg.

ADB Ave., cor. Garner Road, Ortigas Center,

San Antonio, Pasig City 1605

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LED Advantages


The interior of a LED is actually quite simple, which is one of the reasons this technology is so versatile.

While all diodes release light, most don’t do it very effectively. In an ordinary diode, the semiconductor material itself ends up absorbing a lot of the light energy. LEDs are specially constructed to release a large number of photons outward. Additionally, they are housed in a plastic bulb that concentrates the light in a particular direction. As you can see in the diagram, most of the light from the diode bounces off the sides of the bulb, traveling on through the rounded end.

 
LEDs have several advantages over conventional incandescent lamps. For one thing, they don’t have a filament that will burn out, so they last much longer. Additionally, their small plastic bulb makes them a lot more durable. They also fit more easily into modern electronic circuits.

But the main advantage is efficiency. In conventional incandescent bulbs, the light-production process involves generating a lot of heat (the filament must be warmed). This is completely wasted energy, unless you’re using the lamp as a heater, because a huge portion of the available electricity isn’t going toward producing visible light. LEDs generate very little heat, relatively speaking. A much higher percentage of the electrical power is going directly to generating light, which cuts down on the electricity demands considerably.

Per-watt, LEDs output more lumens of light than regular incandescent bulbs. Light emitting diodes have a higher luminous efficacy (how efficiently electricity is converted to visible light) than incandescents — for example, Sewell’s EvoLux LED bulb produces 76.9 lumens per watt compared to an incandescent bulb’s 17 lm/W [source: Sewell]. And they last: LEDs can have lifetimes of 50,000 hours or more [source: Design Recycle Inc].

Up until recently, LEDs were too expensive to use for most lighting applications because they’re built around advanced semiconductor material. The price of semiconductor devices has plummeted since the year 2000, however, making LEDs a more cost-effective lighting option for a wide range of situations. While they may be more expensive than incandescent lights up front, their lower cost in the long run can make them a better buy. Several companies have begun selling LED light bulbs designed to compete with incandescent and compact fluorescents that promise to deliver long lives of bright light and amazing energy efficiency.

Over the next couple of pages we’ll take a look at the future of LEDs in our homes. One day they may be plugged into our light bulb sockets, lighting up our digital readouts and illuminating the millions of pixels that make up our high-definition televisions.

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For Inquiry and Proposal Requests, email me at: gregoriojess@yahoo.com

Jess C. Gregorio

Sales & Marketing

InSpecIT Inc.

Unit 719/722 City & Land Mega Plaza Bldg.

ADB Ave., cor. Garner Road, Ortigas Center,

San Antonio, Pasig City 1605

Philippines

gregoriojess@yahoo.com

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How Light Emitting Diodes Work – What is a Diode?


BY TOM HARRIS & WESLEY FENLON

At the junction, free electrons from the N-type material fill holes from the P-type material. This creates an insulating layer in the middle of the diode called the depletion zone.

When the negative end of the circuit is hooked up to the N-type layer and the positive end is hooked up to P-type layer, electrons and holes start moving and the depletion zone disappears.

When the positive end of the circuit is hooked up to the N-type layer and the negative end is hooked up to the P-type layer, free electrons collect on one end of the diode and holes collect on the other. The depletion zone gets bigger.
A diode is the simplest sort of semiconductor device. Broadly speaking, a semiconductor is a material with a varying ability to conduct electrical current. Most semiconductors are made of a poor conductor that has had impurities (atoms of another material) added to it. The process of adding impurities is called doping.

In the case of LEDs, the conductor material is typically aluminum-gallium-arsenide (AlGaAs). In pure aluminum-gallium-arsenide, all of the atoms bond perfectly to their neighbors, leaving no free electrons (negatively charged particles) to conduct electric current. In doped material, additional atoms change the balance, either adding free electrons or creating holes where electrons can go. Either of these alterations make the material more conductive.

At the junction, free electrons from the N-type material fill holes from the P-type material. This creates an insulating layer in the middle of the diode called the depletion zone.

A semiconductor with extra electrons is called N-type material, since it has extra negatively charged particles. In N-type material, free electrons move from a negatively charged area to a positively charged area.

A semiconductor with extra holes is called P-type material, since it effectively has extra positively charged particles. Electrons can jump from hole to hole, moving from a negatively charged area to a positively charged area. As a result, the holes themselves appear to move from a positively charged area to a negatively charged area.

A diode consists of a section of N-type material bonded to a section of P-type material, with electrodes on each end. This arrangement conducts electricity in only one direction. When no voltage is applied to the diode, electrons from the N-type material fill holes from the P-type material along the junction between the layers, forming a depletion zone. In a depletion zone, the semiconductor material is returned to its original insulating state — all of the holes are filled, so there are no free electrons or empty spaces for electrons, and charge can’t flow.

To get rid of the depletion zone, you have to get electrons moving from the N-type area to the P-type area and holes moving in the reverse direction. To do this, you connect the N-type side of the diode to the negative end of a circuit and the P-type side to the positive end. The free electrons in the N-type material are repelled by the negative electrode and drawn to the positive electrode. The holes in the P-type material move the other way. When the voltage difference between the electrodes is high enough, the electrons in the depletion zone are boosted out of their holes and begin moving freely again. The depletion zone disappears, and charge moves across the diode.

If you try to run current the other way, with the P-type side connected to the negative end of the circuit and the N-type side connected to the positive end, current will not flow. The negative electrons in the N-type material are attracted to the positive electrode. The positive holes in the P-type material are attracted to the negative electrode. No current flows across the junction because the holes and the electrons are each moving in the wrong direction. The depletion zone increases. (See How Semiconductors Work for more information on the entire process.)

The interaction between electrons and holes in this setup has an interesting side effect — it generates light! In the next issie, we’ll find out exactly why this is.

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Jess C. Gregorio

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Unit 719/722 City & Land Mega Plaza Bldg.

ADB Ave. cor. Garnet Road, Ortigas Center

San Antonio, Pasig City, Philippines 1605

gregoriojess@yahoo.com

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How Light Emitting Diodes Work


BY TOM HARRIS & WESLEY FENLON

Though they often come in tiny packages, light emitting diodes produce a large amount of light and are used in an ever-growing list of technologies. See more electronic parts pictures. ©ISTOCKPHOTO.COM/JAMERSONG
Light emitting diodes, commonly called LEDs, are real unsung heroes in the electronics world. They do dozens of different jobs and are found in all kinds of devices. Among other things, they form numbers on digital clocks, transmit information from remote controls, light up watches and tell you when your appliances are turned on. Collected together, they can form images on a jumbo television screen or illuminate a traffic light.
 

Basically, LEDs are just tiny light bulbs that fit easily into an electrical circuit. But unlike ordinary incandescent bulbs, they don’t have a filament that will burn out, and they don’t get especially hot. They are illuminated solely by the movement of electrons in a semiconductor material, and they last just as long as a standard transistor. The lifespan of an LED surpasses the short life of an incandescent bulb by thousands of hours. Tiny LEDs are already replacing the tubes that light up LCD HDTVs to make dramatically thinner televisions.

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https://jcgregsolutions.wordpress.com/2017/04/28/led-lights-retrofitting-cost-saving-project/

For Inquiry and Proposal Requests, email me at: gregoriojess@yahoo.com

Best Regards,

Jess C. Gregorio

Sales & Marketing

InSpecIT Inc.

Unit 719/722 City & Land Mega Plaza Bldg.

ADB Ave. cor. Garnet Road, Ortigas Center

San Antonio, Pasig City, Philippines 1605

gregoriojess@yahoo.com
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Things to Consider When Buying LED Lighting


Source:  1000Bulbs

Things to Consider When Buying LED Lighting

Equivalent Wattage – While lumens are the new standard, it helps to have an easily recognizable guide. Comparing an LED bulb to an incandescent will give you a rough estimate of just how well it will light a room. As a very ballpark figure for LED wattages, 1/4 or 1/5 the incandescent wattage value is usually close to what you need.

Lumens – Lumens directly measure just how much light the bulb gives out in total. On average, a 60-watt incandescent shines at 800 lumens, with roughly 50-100 lumens of difference above or below. The variance depends on manufacturer and age of the lamp. LEDs are directly rated for their max lumen rating and last much longer without dimming of the bulb.

Color Temperature – Your guide to how the light itself will look. Lower values are warmer, with 2700-3000K being a more incandescent “warm white” while higher temperatures like 5000K will deliver a very harsh “stark white” light. Our Lighting Guide lets you select a color temperature and see how it transforms a kitchen.

Driver Content – Because of their design, LEDs do not typically run on AC voltage. Many LEDs require some form of driver to convert the voltage from AC to DC for proper operation. The majority of socket-based LED lamps are self-driven, but you should always check before buying to make sure that you buy both an LED and a driver at the same time if it isn’t self-driven.

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Want to replace all your building, factory, mall, and estates lights to LED but short of investment or doesn’t know how to start?

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https://jcgregsolutions.wordpress.com/2017/04/28/led-lights-retrofitting-cost-saving-project/

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InSpecIT Inc.

Unit 719/722 City & Land Mega Plaza Bldg.

ADB Ave. cor. Garnet Road, Ortigas Center

San Antonio, Pasig City, Philippines 1605

gregoriojess@yahoo.com

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Flying Street Lights


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Flying Street Lights

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LED Lighting Options


* curated information from 1000Bulbs
Standard Shape A19 – Designed to give the appearance and pattern of a standard incandescent bulb. Standard and A-shape LED bulbs fit the same sockets and fixtures as your current household lights.

3-Way LED – A three-way bulb is a light bulb that has two brightness settings instead of the standard on or off. If your lamp or fixture says it requires a three-way bulb, this is the category for you.

Vintage LED Bulbs – Vintage reproduction bulbs are now available with LED filament. They have a warm orange glow with lower light levels to mimic the style of a vintage bulb on a dimmer as it transitions from yellow to orange. These Edison style and Victorian style bulbs make great collector items. 

Wet Location LED Bulbs – A wet location UL rating means these LED light bulbs can be used in humid indoor areas or outdoors where water may drop or flow against the bulb or fixture.

Decorative LED Bulbs – Browse LED globe lights ranging from 3 in. to 1.5 in. diameters or find LED replacement bulbs for your chandelier light bulbs. The long life of LEDs mean less time on the ladder changing burnt out bulbs. Many LED chandelier lights are dimmer switch compatible and come in a range of color temperature so you can still enjoy the ambiance of traditional bulbs but the energy savings of LEDs.

LED Tubes – LED tubes are the emerging standard for commercial and household lighting. Ranging in size from T5 to T12 and a variety of color temperatures, these LED tubes are an easy way to upgrade to energy efficient lighting. Some of them work with or without an existing ballast, making the transition to LED lighting easier than ever. These LED tubes emit the same amount of light as fluorescent T8s, while using a fraction of the power and lasting up to three times longer. LED tubes are especially effective in cold areas like refrigeration lockers where fluorescent tubes are less efficient at producing light.

LED Tape Lights – For accents, alcove, and backlighting, LED tape light is a fantastic choice. More flexible than rope light and bright enough for accent illumination, a strip of LED tape light can bring any place to life. There are countless uses and applications for this easily installed new light source.

Shatter Resistant LED Bulbs – Dipped in a special coating, these bulbs may still break if dropped, but they won’t shatter into pieces and fly across your floor. We recommend not dropping them, but if you do, these make cleanup quite a bit easier.

LED Night Lights – Keep the monsters away with LED night lights. Motion activated, and battery powered, these LED bulbs will light the way to the bathroom or give reassurance that nothing is lurking under the bed when your child needs to reach for a dropped retainer or teddy bear. Mounted using tape or screws, light only the area you need without waking sleeping babies.

Reflectors – From the powerful flood and spot lights, to home bound recessed or track lights, reflectors find excellent use indoors or out. LED reflector lamps can provide the same brilliance for less energy and will create far less heat than an incandescent or halogen lamp. As a bonus, they have a higher CRI than fluorescent reflectors for better colors.

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LED Lights Retrofitting Cost Saving Project

Let us save you lighting power cost by retrofitting all your existing lights with LED.   

We are open to a direct deal financing (no middleman or broker) with private buildings, malls, factories, industrial estates, poultry farms, and residential subdivisions (street lighting). Payment is on the cost saving attained monthly.

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https://jcgregsolutions.wordpress.com/2017/04/28/led-lights-retrofitting-cost-saving-project/

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Jess C.Gregorio

Sales & Marketing

InSpecIT Inc.

Unit 719/722 City & Land Mega Plaza Bldg.

ADB Ave. cor. Garnet Road, Ortigas Center

San Antonio, Pasig City, Philippines 1605

gregoriojess@yahoo.com

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LEDs or Fluorescents – Which is More Efficient?


* curated information from 1000Bulbs
LED light bulbs for the win! When it comes to purchasing energy-efficient lighting, LEDs surpass CFLs by a wide margin. LEDs are instant-start with no warmup time needed. They work well in cold weather, and are substantially more durable since manufactured out of plastic instead of glass. From standard bulbs to fluorescent tubes, LEDs can replicate the same lighting conditions found in fluorescents while lasting longer and using less energy. As an added bonus, all LEDs are RoHS compliant and do not use mercury, a claim that can’t be made by fluorescent bulbs.

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LED Lights Retrofitting Cost Saving Project

Let us save you lighting power cost by retrofitting all your existing lights with LED.   

We are open to a direct deal financing (no middleman or broker) with private buildings, malls, factories, industrial estates, poultry farms, and residential subdivisions (street lighting). Payment is on the cost saving attained monthly.

Check it out.

https://jcgregsolutions.wordpress.com/2017/04/28/led-lights-retrofitting-cost-saving-project/

Email me filled up questionnaire for RFQ’s and interest on it.

Jess C.Gregorio

Sales & Marketing

InSpecIT Inc.

Unit 719/722 City & Land Mega Plaza Bldg.

ADB Ave. cor. Garnet Road, Ortigas Center

San Antonio, Pasig City, Philippines 1605

gregoriojess@yahoo.com