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Showing posts with label led spotlishts. Show all posts
Showing posts with label led spotlishts. Show all posts

Friday, March 4, 2011

Black and McDonald Spent $3,199,500 on LED Retrofit in Canada

Reportedly, Black and McDonald has spent $3,199,500 on the replacement of 2,500 high-pressure sodium lights with led lights across the Nova Scotia province in Canada.

Amherst-based Led Roadway Lighting (LRL) will produce and deliver the LED luminaires. And Bill Estabrooks, the Transportation and Infrastructure Renewal Minister, has supplied the funding for the project.




Source: cnled
Reposted by: Sielement LED Lighting, leading LED Lights Manufacturer, LED Lights Provider, LED Lights Supplier., LED Lights Vendor.
Products: LED Lights, LED Tubes, LED Bulbs, LED Strips, LED PL Lights, LED Light Bars, LED Wall Washer Lights, LED Spotlights, LED Par Lamps, LED Downlights, LED Panel Lights, LED G24 Lamps, LED Grow Lights etc.

Sunday, January 23, 2011

Diagrams of Typical LED Par Lamps: Par30

Continuing with our last post "Diagrams of Typical LED Spotlights: GU10" regarding GU10 LED spotlights, in this post, we will talk about LED Par30 Lamps.

LED Par30 Lamps

LED Par30 Lamps

Traditional Par lamps are commonly used in stage ligting applications. Par lamps are used to illuminate the stages, with dynamic-changing light colour, they are common lighting fixtures on the stage. However, because of the high power consumption, Par lamps are now gradually being replaced by LED PAR lamps. LED Par Lamps are designed to replace traditional halogen Par lamps. 5W LED to replace 40W halogon, 7W LED to replace 50W halogen, 9W LED to replace 60W halogen, 12W to replace 75W halogen, 80-90% energy saving. See Fg. LED Par30 Lamps.

From the appearance point of view, LED Par lamps and traditional halogen Par lamps look very similar. However, in fact, the difference between them is tremendous.

Light Source: light source is the essential difference between LED Par lamps and halogen Par lamps, and that's the reason why LED lights are much more efficient than halogen lamps. halogen lamps generate light by heating tungsten that covered by halogen gas, while for LEDs, simply describing, when current goes through LEDs, compounded particles in P-N junctions will then release photons (energy). LEDs generate less heat when emitting light, that's the reason why LEDs are much more efficient than halogen lamps and incandescent bulbs.

LED Par30 Lamps

LED Par30 Lamps - Dimension

Materials: materials are different, LED Par lamps usually need aluminum heatsink for heat dissipation while halogen Par lamps do not - their lamp bodies are usually made of plastic.

Driver: furthermore, LED par lamps need drivers (or transformers) in order to be running in existing GU10 fittings, normally 110V or 240V high-voltage fittings.

The picture below illustrates a typical LED Par30 lamp's exploded view. The Par30 lamp is decomposed into 9 components as can be seen from the diagram. Following are the corresponding annotations.

LED Par30 Lamps

LED Par30 Lamps - Componencts

1. Cover
2. Lens: beam angle usually customizable
3. Holder
4. LEDs
5. MC PCB
6. Heatsink
7. Screw
8. Plug holder
9. Replacable plug: E26,E27

Copyrighted by: www.sielement.com

Image Source: ledcax.com

Wednesday, January 19, 2011

Various standard LED lampholders: E27, MR16, GU10, PAR

According to installation, lampholders are generally divided into bayonet-type and screw, etc. According to material, bakelite, lamp holders are made of plastic, metal, ceramics, etc. For example, E27 maybe the most commonly used screw lampholder for light bulbs. And the lampholders for fluorescent and energy-saving tubes are referred to as T8 and T5.

Some lampholders may require up to IP68 protection grading. Usually lampholder are required to meet IEC (International Electrotechnical Commission standard) security certification.

Lampholder Classification:

Typically, the name of a lampholder type is likely to be like this “letter(s) + number(s)”. A letter at the beginning often indicates the shape of the bulb, i.e. E for Edison, T for tubular, R for reflector.

E12, E14, E26, E27, E40 and other names with “E” at the begining are all Edison screw lampholders. Obviously, E represents Edison, the name of the great man who invented incandescent bulb. E27 is commonly used in residential lighting – incandescent light bulbs. E14 has a smaller size than E27, while E40 is larger than E27.

B22, with 2-pin screw, is another commonly used lampholder type for incandescent light bulbs.

GU lamps (e.g., GU10) is a daily use bayonet-type. GU: G type lamp holder, said plug-in, U said that U-shaped lamp part of the show, behind the numbers that light foot hole center distance (in “mm”) .

MR16, MR11 lamps. Begining with “MR”, followed by a number, this type of lamps are usually used as spot lighting for a small area. The lamps usually have two small pins. MR: Multiface Reflect, multi-faceted reflector (light cup), followed by numbers indicates the lamp cup diameter(unit is 1/8 inch). E.g., MR16′s diameter = 16 × 1/8 = 2 inches or = 50mm. The same calculation for MR11.

PAR lamps are generally PAR20 PAR30 PAR36 PAR46 PAR56, volume may be long or short, also known as down light, light beam, used to illuminate the stage, dynamic change color, are common fixtures on the stage, because the relatively large power consumption, but also grilled Feeling, now gradually being replaced by LED PAR lamps.Dimension is increasing as the number following “PAR” increases, i.e., PAR38 has a larger size than that of PAR30′s.

LED Light Bulbs E27
E27

LED Spotlights MR16
MR16

LED Spotlights GU10
GU10

LED Par Lamps
PAR Lamps



Copyrighted by: sielement.com

Monday, September 27, 2010

Microchip designed new Digital LED Lighting Development Kit

Tue, 09/28/2010 - 10:37 — jasminezhuang

Microchip Technology Inc. has designed its Digital LED Lighting Development Kit, which enables designers to quickly leverage the capabilities and performance of the dsPIC33 'GS' series of Digital Signal Controllers (DSCs) to develop LED lighting products.

The dsPIC33 'GS' DSC and this reference design allow developers to create a 100% digitally controlled ballast function, while including advanced features such as dimming and color hue control.

The dsPIC33 'GS' DSCs can support an entire system implementation for LED lighting products, including power-conversion circuits, such as AC-to-DC and DC-to-DC conversion, along with functions such as Power Factor Correction (PFC), which are necessary for a complete product and lower the overall system cost.

With the help of the digital-power techniques in this reference design and the dsPIC33 'GS' series of DSCs, you can benefit: Reduced System Cost via higher integration, higher Efficiency using digital-control techniques ,flexible and reusable designs and advanced features implemented in software.



Original Source: LEDs Magazine
Reposted by: Sielement Technologies, LEDs Lights Manufacturer and Provider
Products providing: LED Lights, LED Tubes, LED Bulbs, LED Strips, LED Spot Lights, LED Down Lights, LED Panel Lights, LED Grow Lights etc.
http://www.sielement.com
info@sielement.com