Transcript ZETA LED - SEGfL Microsites 2

Intro
The Zeta Group
*Electronic Vehicle Control Systems
*Solar Lighting Solutions
*LED Lighting and Display
ZETA LED
Behind LED the Technology
What is an LED?
LED = Light Emitting Diode
A Specially doped crystalline material that emits light when a
current is passed through it.
Practical History of LED
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First Introduced as a practical component in 1962 producing a red light
which was quite weak.
In the 1970s additional colours and wavelengths became available and we
saw yellow and orange light and started being used in calculators, digital
watches and test equipment
It was not until late 1980s when the rapid growth of LEDs began due to
increased technology and better assembly methods. The brightness was
10 times higher than standard LEDs and the Voltage had decreased
creating complete power savings. LEDs started being used in digital
message displays, medical equipment and bar code scanners
In the 1990s LEDs were replacing traditional lighting in traffic signals,
automotive application and variable message signs increased in
functionality and decreased in price
By 2004 the cost – brightness ratio had rapidly reduced due to the volume
increasing allowing for new innovative lighting solutions.
2009 – Zeta LED Launch a range of direct replacement and high powered
LED lighting solutions
LED Facts
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LEDs must be driven by carefully controlling current and not using a
fixed Voltage.
LEDs are very efficient but still generate a small amount of heat
The essential factor when estimating the lifetime of an LED is the
ability to extract the heat from the LEDs. Successful heat dissipation
will result in a longer lifetime and a brighter output.
LEDs have a power rating from 60milliamps up to several 10's of
watts.
Advantages of LEDs
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Lower Power consumption
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Carbon emission reductions
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Increased Lifetime
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Slower degradation of Light(NB.50000hours)*
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Ability to dim and colour change
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Improved Colour Rendering Index (CRI) for some light sources
(sodium replacement)
Safety Issues
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No UV
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No Mercury
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No Infrared
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Street lighting replacement = better CRI when replacing SON fittings
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CCTV – truer colours that allow subjects to be identified accurately
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Voltage reduced down to 12v meaning a safer application and
installation.
Manufactures
There are now a number of quality reliable LED
manufacturers including:
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Nichia
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Osram
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Cree
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Phillips
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Seoul semiconductor
Thermal Design
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Many Early LED lamp failures were due to the lack of understanding
surrounding heat management with LEDs. This lack of knowledge
resulted in a lifetime of around 2000 hours and not the predicted
50,000 hours.
Thermal Design is the single most important consideration when
designing LED Luminaries
Power Supply technology
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Power supply's must provide a well regulated constant current to
LEDs.
Power supply lifetime must match the LED lifetime rating otherwise
the luminaries will fail to achieve the full running time.
Low cost LED solutions can use power supply's that are only rated at
5000 hours and therefore fail even though the LEDs are rated at
50,000 hours.
Mis leading Information
LED technology has been surrounded by misleading information that
has contributed to the poor reputation attracted in early 2000
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White Light lifetime of 100,000 hours this is untrue – red LEDs can
last for up to 100,000 hours. Replacing epoxy with silicone can
increase a white LED lifetime to 100,000 (Cambridge University
2009)
LEDs are direct replacements for traditional fittings – This is
misleading as an assessment is required to ensure the lighting
distribution and intensity required is matched once this has been
carried out they can be direct replacements.
Slow Progression
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As all new technologies when the first LEDs became available the
price was extremely high and the performance was relatively
mediocre.
Improvements in materials, assembly and the understanding behind
the physics of degradation has lead to an increase in performance
and reliability of modern LEDs. This combined with an increase in
market penetration lead to a rapid price reduction by approximately a
factor of 5 in the last 5 years.
Flexibility
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LEDs have the ability to be more flexible than their traditional
counterparts as:
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They are smaller in size allowing for design possibilities
involving different shapes sizes and angles.
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They come in a variety of colours and not just standard
red, blue, white etc – colours can be mixed to generate a
company specific colour i.e. shades of blue and green.
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They have the ability to be completely controllable in colour
and in brightness.
Situational
When using LED Lighting it is necessary to ensure the light being
provided will substitute the traditional source. To ensure you get the
correct lighting effect you must
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Have a full site survey including luminaire height and light
distribution
Select the correct lighting and and number of fixtures to light the
area.
Trial the area to witness the change in lighting and benefits
If task lighting is needed add this at a energy cost as little as 3w to
increase specific lighting.
Feature, Task and mood Lighting
As well as general lighting LED light sources can be used as feature,
task and mood lighting as the light can be designed into flexible
strips, concealed water proof units and specific directional fittings.
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Feature lighting includes – LED building up lighters reducing energy
consumption as much as 700 watts. Also strip lighting that can be
used to illuminate internal and external features that is as small as
15mm wide with a thickness of 5mm.
Mood Lighting – RGB (red,green,blue) LED are easily
manufactured and controllable with the option of now replacing a
60W incandescent with an 8w wireless controllable LED RGB lamp
(Zeta LED).
Task Lighting – task lighting has become a popular way of
illuminating office areas, shops and even homes using Gu10 and
MR16 bulbs rated at between 25 – 50W these can now be replaced
by as little as 3w – 5w of LED lighting (taking situational factors in to
consideration).
Disposal, reliability and health
issues
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Disposal – when disposing of a traditional light fitting there are a
number of issues to be addressed.
1. 15p wee charge – disposal cost
2. Mercury content – unable to dispose of through normal waste
procedures
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Reliability – When using a Zeta LED by using the latest LED
technology offer 50,000 hr lifetime to 40% reduction in output
Health Issues:
1. NO Ultra Violet (UV)
2. No Mercury
3. No Flicker
4. Helps prevent SAD – Seasonal Affective Disorder
CSR
Corporate Social Responsibility – The triple bottom line in business
defined as: People, Planet and Profit. Maximising the efficiency of
these 3 is what a business should be looking to do.
LED lighting fits into all 3 of these categories:
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People – a healthier light offering no UV, eliminating flicker, no
mercury and prevention of Seasonal Affective disorder.
Planet – reducing energy consumption and Carbon emissions by up
to 70% when replacing traditional fittings.
Profit – energy consumption reduced and therefore energy bills
reduced directly. The longer life of the products also requires less
maintenance and therefore less administration, replacement, labour
costs.
Zeta
Zeta LED offer internal and external solutions for new build and
retrofitting. Focusing on:
1. Energy Savings
2. Carbon Emission Reduction
3. Lighting Levels to match or exceed traditional luminaire illumination
levels
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With 7 years of LED luminaire design, testing and installation
experience Zeta LED believe it has some of the markets best
alternatives to traditional inefficient lighting. Holding patents for a
number of the world first LED direct replacements Zeta is at the
forefront of LED and design Technology.
Zeta Products
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High powered floodlight replacement: Using Zeta Technology we
can replace a 500W Halogen floodlight with a 60W LED solution
that is brighter and more efficient (see product 1)
Low powered LED tube replacements – replacement of energy
intensive Fluorescent tubes with Zeta LED tubes can save over
50% in energy.(see product 2)
LED ceiling panels that offer a larger LUX reading at desk and floor
level that 4 fluorescent tubes. ( see product 3)
LED Light Guide Panels – used in road signs, advertising signage
and for low level lighting. ( see product 4)
For more examples of LED solutions visit www.thezetagroup.com
Zeta Products
Product 1: 60W LED Flood Light
Product 2: LED Tube
replacement
Product 3: 40W LED ceiling panel
Product 4: LGP
Common Room Trial
Replacement lamps:155xMR16 5w replacing 50w halogens
25x led tubes 22w replacing 70w fluorescents
8x led bayonet6w instead of 40w incandescent.
Cost of replacements-£5500+installation
See savings!!
Common Room Savings
ANNUAL
Energy saving
£4580
Carbon Saving
28Tonnes
Maintenance
£3800
ANNUAL
Total
£8380
LIFETIME
Energy
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Carbon
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Maintenance
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Total
Breakeven
In year 1
What Can You do to save energy?
1)Have a Zeta “brief” review of options.
2)Survey and cost/saving proposal
3)Review funding options available
4)Save energy, save maintenance, save money,
Save the Planet!! Remember:-
Corporate Social ResponsibilityPeople,Planet & Profit!