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General Illumination and LED Basics

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Title: General Illumination and LED Basics


1
General Illumination and LED Basics
2
General Illumination -Terms and Definitions
  • General Illumination - a term used to distinguish
    between lighting that illuminates tasks, spaces,
    or objects from lighting used in indicator or
    purely decorative applications. In most cases,
    general illumination is provided by white light
    sources, including incandescent, fluorescent,
    high-intensity discharge sources, and white
    LEDs.
  • Ballast - an electrical device used with
    fluorescent or HID lamps to supply sufficient
    voltage to start and operate the lamp but then to
    limit the current during operation.
  • Compact Fluorescent Lamp (CFL) - a generic name
    used for a whole family of small, single-ended
    fluorescent lamps with a folded, bridged, or
    spiral glass tube design and with high color
    rendering (CRI gt 80) and a long life (gt 8,000
    hours).
  • Color Rendering Index (CRI) - a measure of a
    lamps ability to render colors accurately. The
    scale ranges from 1 (low pressure sodium) to 100
    (the sun). A CRI of 85 is considered to be very
    good.
  • Correlated Color Temperature (CCT) - relative
    color appearance of a white light source,
    indicating whether it appears more yellow/gold or
    more blue, in terms of the range of available
    shades of white. This is measured on a Kelvin
    scale. 5000K is considered midday sunlight.

Kelvin Scale
3
  • Cove Lighting - a lighting system comprised of
    light sources shielded by a ledge or recess, and
    distributing light over the ceiling and possibly
    the upper part of the wall.
  • Direct Current (DC) - electric current without
    alterations. DC current is usually supplied by a
    battery, a transformer, or photovoltaic cells.
  • Efficacy - a measure used to compare light output
    to energy consumption. Efficacy is measured in
    lumens per watt. A 100-watt light source
    producing 1750 lumens of light has an efficacy
    (efficiency) of 17.5 lumens per watt (L/W).
  • Fluorescent Lamp - a low-pressure mercury
    electric-discharge lamp (light bulb) in which a
    phosphor coating on the inside of the glass
    tubing transforms some of the ultraviolet energy
    created inside the lamp into visible light.
  • Halogen Lamp - a type of incandescent lamp (light
    bulb) that contains halogen gases (such as
    iodine, chlorine, bromine, and fluorine), which
    slow the evaporation of the tungsten filament.
  • HID Lamp - high intensity discharge (HID) lamps
    (light bulbs) have a longer life and provide more
    light (lumens) per watt than most other light
    sources. Available in mercury vapor, metal
    halide, high pressure sodium, and low pressure
    sodium types.

Cove Lighting
Halogen Metal Halide
4
  • Hard Wired - technically means that the light
    fixture is permanently connected to an electrical
    source. The light fixture is not hard-wired if it
    gets power via a cord plug.
  • Incandescent Lamp - lamp (light bulb) in which
    light is produced by means of an element heated
    to the point of incandescence by the passage of
    an electric current.
  • Luminaire - a complete lighting unit consisting
    of a lamp (light bulb) or lamps, a housing, and a
    connection to the source of electrical power.
  • Line Voltage - usually 120 volts. This is the
    power coming into a building or outlet.
  • Low Voltage - usually 12 volts but sometimes 24
    volts.
  • Lumen - a unit of measure used to describe the
    amount of light that a light source produces or
    emits.
  • Wattage - the amount of electrical power consumed
    by a lamp or light fixture measured in watts

Watts Volts x Amps
Watts x Hours x Local Cost Energy
Cost 1000
5
LED 101- Terms and Definitions
  • Light Emitting Diode - a semi-conductor diode
    (chip) that emits light when an electrical
    current is applied in the forward direction of
    the device, as in the simple LED circuit.
  • Binning In general, LEDs are mass produced in
    a bin. These bins are made with the same
    semiconductor material, thus they produce the
    same shade of color. A different bin of LEDs has
    the chance for variance in semiconductor
    material, thus possibly producing a different
    shade of the same color.
  • Solid State Lighting (SSL) This is LED
    technology in general. The term refers to the
    solid nature of the LED. There are no gasses,
    filaments, or chemicals producing the light. This
    also gives it resistance to shock and impact that
    older technologies cannot provide.
  • RGB- The combination of Red, Green, and Blue
    Leds to produce 16.7 million colors. This gives
    the ability to do color changes, washes, and even
    video capability.
  • High Brightness LED LEDs that individually
    consume 1 watt or more. These are used in
    spotlight, floodlight, and general illumination
    applications.
  • Printed Circuitry Board (PCB Board) In LED
    applications, A PCB is a thin board made of
    fiberglass or a similar material. Electrical
    wires are "printed" onto the board, connecting
    the LEDs together. This allows for superior
    controllability.

Packaged 5mm LEDs
RGB
High Brightness LED 1watt
6
  • Viewing Angle LED is a very directional light
    source and some diodes can be made with a narrow
    or wide viewing angle.
  • SMD This means Surface Mount Device. Basically,
    the LEDs are mounted on a continuous strip or
    bar (PCB Board) without penetrating the backing
    (ie, the underside is smooth).
  • Through-Hole-Technology The diode penetrates
    the back of the PCB board so that only the diode
    is visible from the front. All circuitry and
    soldering is on the back of the strip or bar.

Through-Hole SMD
7
LED - Advantages and Challenges
  • ADVANTAGES
  • LEDs produce more light per watt than
    incandescent bulbs, and are rapidly approaching
    CFLs.
  • LED light is directional and can be focused to
    highlight areas without the use of reflectors.
  • LED lifetime is not effected by on/off cycling.
    Fluorescents burn out more quickly. HIDs require
    warm up and cool down periods.
  • LEDs produce instant light when turned on. They
    achieve full brightness is micro seconds.
  • LEDs, being solid state components, are
    difficult to damage with external shock, unlike
    fluorescent and incandescent bulbs which are
    fragile.
  • LEDs are a true GREEN lighting source as they
    do not contain any harmful chemicals or gasses.
    Fluorescents contain mercury, and Incandescent
    contains lead.
  • Average lifetimes frequently average 50,000
    hours, and even up to 100,000 hours in certain
    applications. Fluorescents - 15,000 to 20,000
    hrs., Incandescent 1,500 to 2,500 hrs.
  • LEDs rarely fail to the point of replacement.
    Fluorescent and Incandescent can burn out
    completely where LED failure is usually
    classified as light depreciation (fading over
    time).
  • LEDs ARE the most efficient light source. In a
    tough economy right now, LEDs are a great way to
    lower monthly energy bills, and save the planet
    at the same time.
  • LEDs do not emit any IR or UV. This is
    especially important in perishable food displays.

Incandescent
Fluorescent CFL

8

CHALLENGES
  • Cost has been the biggest obstacle for LED to
    overcome. We are approaching the price point
    where LED makes sense in EVERY application, but
    we are not quite there yet. For new construction
    or large remodels, LED makes perfect sense as the
    payback will be much faster.
  • Optics are needed with LEDs to disperse light.
    Optics can lower actual light output. The
    technology is combating this with higher
    brightness LEDs.
  • Thermal Management is usually the largest
    technical problem to overcome. Heat can lower LED
    lifetime which is why we say that the lifetime
    depends on the application. Insulated areas where
    heat cannot escape can be detrimental to LED
    life. Some technologies, however, are built with
    mechanisms (heat sinks) to fight this.
  • Availability of LED products on hand is usually
    limited. Some Lighting Suppliers are starting to
    carry a limited selection, but the full range of
    possibilities is yet to be introduced.

9
What does this all mean?
  • LED is still a relatively new technology in
    comparison to incandescent and fluorescent. This
    means that our general knowledge in lighting is
    invaluable in explaining the benefits of LED.
  • These terms and concepts are to give you a basic
    background. They are not the end-all of
    knowledge. The true intention of this is to spark
    your own research and make it more familiar.
  • We need to be able to talk shop with our
    potential distributors. This background will give
    you some credibility when talking to experienced
    re-sellers.

Innovative LED Lighting Design
  • This will help you when reading spec sheets or
    competitor brochures. These technical specs, and
    your understanding of them ,can be the difference
    in closing a sale.
  • Eventually, we will all become lighting designers
    in some form or another. Knowing the general
    electricity requirements, the effect that a light
    will have, and how to apply it will be key.

Traditional Landscape Uplighting
10
LED NEON FLEX - Breakdown
What is it?
LED Neon Flex was developed over 20 years ago,
and several manufacturers in China claim to have
the rights to it. It is used for an alternative
to exposed neon bordering, and is truly the
simplest, yet most advanced solution for long,
power consuming runs. It can bend and flow with
rooflines and edges without fear of breakage.
Planning and Installation times for users are
drastically reduced with its pure
simplicity. Different forms of LED Neon Flex
have circulated around the U.S. market for 7-8
years. Most of these products have been cheap and
poorly constructed imitators. This is why many
early applications failed, and thus, left a bad
taste in the mouth of those first willing to try
it. As a result of a great partnership with our
manufacturer, Brilliant Concepts has unveiled the
LED Neon Flex-Plus. The first and only Patented,
UL Listed, Guaranteed, and Inventoried product
of this type in the North American Market.
Problems of the past have been addressed by our
manufacturer, and we feel confident that we are
providing the best product on the market.
11
Uses and Applications
  • Exposed Neon We must be careful in our
    language when explaining our product as a neon
    replacement. We must be clear that it as an
    exposed neon replacement or alternative. Neon
    is also used to do face lit and halo lit channel
    letters.This seems to be an industry wide term,
    so we should go with the flow.
  • Architectural Bordering This is the intended
    application for LED Neon-Flex, and although it
    works well in other applications, this is where
    it truly shines. It can accent sharp edges, or
    flow and bend with a tight curve or a long
    radius. Just about every retail or service
    related business can benefit even from the simple
    roof outline. This is proven to draw attention
    and curiosity. It may be one of the simplest, yet
    most effective forms of advertising.

LED NEON FLEX BORDERING
Exposed Glass Neon Sign Bordering
12
  • Interior Design This is a great avenue as LED
    Neon-Flex can go places previously forbidden by
    Glass Neon. It is a basic industry standard to
    NOT mount exposed Glass Neon below the 8 ft. line
    due to its fragility and shock hazard. LED Neon
    Flex can be mounted on stairs, under bar
    countertops, and embedded in floors. This is due
    to the durable nature of LED technology and the
    added protection of the PVC jacket.
  • Signage LED Neon-Flex can be used in some
    signage applications. The effect is debated among
    sign industry insiders. Some have said that LED
    Neon-Flex works well for Face-Lit Channel
    Letters, Halo-Lit Channel Letters, and Sign
    Bordering. Others say that it is only bright
    enough for bordering. There is also a 24v version
    that is a smaller diameter and perfect for making
    custom signs.

Bar Floor Outline and Bar
Countertop
Halo-Lit Channel Letter
Neon-Flex Ultra Thin 24v- Custom Signage
Face-Lit Channel Letter
13
Innovators vs. Imitators
There are many factors involved in making such a
simple product. LED Neon-Flex has been made by
several different manufacturers, all with
different philosophies, materials, and
construction techniques. They all seem to produce
a similar effect when first plugged in. The
product earns its wings in time-tested
applications and installations. The imitators
use cheaper components and materials, short-cut
construction techniques, and unskilled and
untrained workers to assemble it. The result is a
low quality product that does LED Technology a
disservice. These specific companies usually lend
to a product that is just not bright enough,
leaves many hot spots, and has continual section
burnouts. Brilliant Concepts manufacturer,
however, is a true innovator in this field. Large
amounts of time, energy, and money have gone into
product research and development to provide us
with a truly explosive and reliable product. This
makes Brilliant Concepts the only North American
company to offer the LED Neon Flex-Plus through a
large domestic inventory.
14
Specific Differences
  • LED CHIPS -

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Specific Differences
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