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显示标签为“WS2812B LED STRIP.”的博文。显示所有博文
显示标签为“WS2812B LED STRIP.”的博文。显示所有博文

2014年11月12日星期三

The difference between ws2812 and ws2812b

Highly Recommended our APA104 IC led strip lgiht.

APA104/APA102 built in ic led chip is encapsulated by us , and ws2812b , ws2812 is not very popular as before , actually so Many people even don't know  the difference between ws2812b and ws2812. So let us to tell you the difference about it.
Frankly speaking, both of ws2812b and ws2812 is adopted build in ic . use ws2811 ic to be the driver So what is the difference ? WS2812b have 4 pins, but ws2812 have 6 pins, 
the following picture is about them . 
WS2812B




WS2812

We'll update our NEW led light in below link, welcome to follow us.

2014年11月6日星期四

APA102/APA104 Compare With WS2812B/WS2811

NEW: APA107 (the upgraded chip of APA102)
APA107 will be upgraded soon, the PMW can be 26-28kHz.

Firstly you should know what is APA102 chip/APA107 chip, WS2812B chip, SK6812 chip more details, pls click below tag for reference

APA102 Chip     APA107 chip       WS2812B chip   SK6812 chip

APA102 led strip          
(price: info@newstarleds.com)





WS2812B led strip 
(Left is WS2812B)



Below all analysis was got from our customer: 

"I contrast to the very timing-sensitive one-wire protocol of the WS2812,
the APA102 uses a stand two-wire fire SPI protocol – one clock line and one data line.
Each LED has two inputs and two outputs which can be daisy chained. At the first
sight, this may seem wasteful, but it has the advantage of being supported by standard
microcontroller periphery and it is insensitive to timing variations. Due to the critical
timing requirement, it is not possible to control the WS2812 from SOCs with
multitasking operating systems, such as the Raspberry Pi. This should not be an issue
with the APA102. Furthermore, the data can be transferred at an almost arbitrary
clock rate. I was able to control the LEDs with 4 MHz SPI clock without any hitch. It
appears that the maximum speed is mainly limited by the parasitics of the wiring. The
data format is shown below. NEWSTAR LED CO.,LIMITED



Each update consists of a start frame of 32 zeroes, 32 bits for every LED and an end
frame of 32 ones. I am not sure what the “End Frame” is good for, since its
encoding is indistinguishable from a LED set to maximum brightness and will simply
be forwarded to the next LED. In my experiments, omitting the end frame did not
have any impact.
One interesting addition is the “global” field for each LED, which allows to control
the brightness of the LED in 32 steps from 0 to 31. When trying different parameters,
I was quite surprised to observe that the LEDs did not show any visible

pulse-width-modulation (PWM) flicker at all when the global brightness was set to 31.This is quite different from the WS2812, which shows visible PWM flicker when
moving the LEDs.
Interestingly, the APA102 started to flicker once I set the global brightness to 30 or
below. To understand what was going on, I hooked up my scope to the power rails.
When the LEDs are turning on, they draw significantly higher current which leads to
a drop in voltage across the power rails. I previously used a similar method to
investigate the inner workings of candle flicker LEDs.
NEWSTAR LED CO.,LIMITED

The picture above shows the current modulation for RGB=255,255,255 and the
global brightness set to 16 (50%). The pulse width modulation is clearly visible in
the voltage signal at a frequency of 580 Hz, very similar to the 430 Hz of the

WS2812.


Next, I set the RGB value to 128,128,128 and kept the global brightness at 50%. The
result is shown above. Two PWM modulation schemes are superimposed in this
configuration. The global brightness is still modulated at ~582 Hz, while RGB value
is modulated at an approximately 32 times higher frequency, 19.2 kHz. This
frequency is significantly above the flicker fusion threshold, even when moving the
LED around, leading to an apparent constant brightness.
The very high PWM frequency is a pretty nice feature of these LEDs. In combination
with the higher update speed due to the SPI interface, they should be much better
suited for persistance-of-vision applications than the WS2812.
In summary, the APA102 show significant promise compared to the de-facto standard

WS2812:
       They can be controlled with a standard SPI interface. No critical timing
           required and much faster than the one wire protocol.
        They have an extremely high PWM frequency, allowing flicker-free POV
            applications.

        They are available in a special package with better heat sinking."

Posted by Jason Gong
http://www.newstar-ledstrip.com
Dream Color Pixel APA102 LED Chip diodes: http://www.newstar-ledstrip.com/productshow753.html

2014年11月5日星期三

Top 8 Benefits for LED Light

Top 8 Benefits for LED Lights Instead of Conventional Lighting


You certainly hear and read a lot about the advantages and benefits of the energy efficiency of LED light emitting diodes vs traditional lighting. When you compare them to other energy-saving illumination methods that are available on the market today, you will find that LED lighting is by far the most power-saving and smart solution. Recent research and developments in the field of LED illumination is about to bring upon us an intelligent green LED lighting revolution that will help us save the planet. Join us now and become a part of it!



By far the most energy efficient, the cleanest and most eco-friendly way of illumination is LED lighting, which is basically digital light and comes with a multitude of amazing benefits.


In fact, in makes a big leap in technology that can been seen much as an upgrade from analog to digital. LED is digital light, and the advantages versus conventional ‘analog’ lighting are so huge and of major benefit to both the users of this "technology of digital light" as well as also to our planet.



That's why we believe to have plenty of good reasons for being passionate about LED illumination and are so glad about offering you our exclusive LED lighting wholesale section with quality LED lights from certified NEWSTAR LED manufacturers. So let’s break it down and take a closer look at.


1. Long Life
Long life time stands out as the number one benefit of LED lights. LED bulbs and diodes have an outstanding operational life time expectation of up to 100.000 hours. This is 11 years of continuous operation, or 22 years of 50% operation. If you leave on the LED fixture for 8h per day it would take around 20 years before you’d have to replace the LED bulb.


LED’s are different to standard lighting: They don’t really burn out and stop working like a standard light, moreover the lighting diodes emit lower output levels over a very long period of time and become less bright.

2. Energy Efficiency
Todays most efficient way of illumination and lighting, with an estimated energy efficiency of 80%-90% when compared to traditional lighting and conventional light bulbs. This means that about 80% of the electrical energy is converted to light, while a ca. 20% is lost and converted into other forms of energy such as heat.


With traditional incandescent light bulbs who operate at 20% energy efficiency only, a 80% of the electricity is lost as heat. Imagine the following scenario:

If you use traditional lighting and have an electricity bill of e.g US$ 100, then US$ 80 of that money has been used to heat the room, not to light it! Using LED illumination with 80% efficiency, the electricity costs would be around US$ 20 and you’d have saved around US$ 80.

The long operational life time acts as a multiplicator and helps achieve even more energy efficiency, especially large scale and when thinking in terms of urban infrastructure projects, such as cities, railroads and airports.

Think of e.g an airport using energy efficient LED lighting exclusively and achieving a 30% power consumption reduction in comparison with an airport using conventional lighting technology.

Because the long life span of LED lights, also the maintenance work - think of all the work and energy it would take to purchase, stock and change the conventional light bulbs of an airport - you’ll see that you can make significant energy savings also when it comes to maintenance and replacement due to the long operational life times of LED lighting.


3. Ecologically Friendly
LED lights are free of toxic chemicals. Most conventional fluorescent lighting bulbs contain a multitude of materials like e.g mercury that are dangerous for the environment.

LED lights contain no toxic materials and are 100% recyclable, and will help you to reduce your carbon footprint by up to a third. The long operational life time span mentioned above means also that one LED light bulb can save material and production of 25 incandescent light bulbs. A big step towards a greener future!

4. Durable Quality
LEDs are extremely durable and built with sturdy components that are highly rugged and can withstand even the roughest conditions.

Because LED lights are resistant to shock, vibrations and external impacts, they make great outdoor lighting systems for rough conditions and exposure to weather, wind, rain or even external vandalism, traffic related public exposure and construction or manufacturing sites.


5. Zero UV Emissions
LED illumination produces little infrared light and close to no UV emissions.

Because of this, LED lighting is highly suitable not only for goods and materials that are sensitive to heat due to the benefit of little radiated heat emission, but also for illumination of UV sensitive objects or materials such a in museums, art galleries, archeological sites etc.

6. Design Flexibility
LEDs can be combined in any shape to produce highly efficient illumination. Individual LEDs can be dimmed, resulting in a dynamic control of light, color and distribution. Well-designed LED illumination systems can achieve fantastic lighting effects, not only for the eye but also for the mood and the mind:


LED mood illumination is already being used in airplanes, classrooms and many more locations and we can expect to see a lot more LED mood illumination in our daily lives within the next few years.

7. Operational in Extremely Cold or Hot Temperatures
LED are ideal for operation under cold and low outdoor temperature settings. For fluorescent lamps, low temperatures may affect operation and present a challenge, but LED illumination operates well also in cold settings, such as for outdoor winter settings, freezer rooms etc.

8. Low-Voltage
A low-voltage power supply is sufficient for LED illumination. This makes it easy to use LED lighting also in outdoor settings, by connecting an external solar-energy source and is a big advantage when it comes to using LED technology in remote or rural areas.



Did these top 8 benefits for LED light convince you? LED lighting has even more benefits and advantages, so make sure you go LED and save both the planet - and your money!


color temperature adjustable led lamp:  http://www.newstarleds.com/products.asp?sid=184

Welcome to contact us.

NEWSTAR LED CO., LIMITED


Our facebook: 
https://www.facebook.com/newstarleds

2014年10月22日星期三

Magic color 5050smd RGB LED Strip with IC

Advantage of led strip magic dream color :
1. Easy connection and installation 
2. long life span,standard warranty 3 years
3. 3 Leds cut-able, matched with easy connection accessories
4. No need the constant-current power feed
5. Low power consumption
6. Best choice for holiday season, show and exhibition's decorating



(Dream Color APA104 LED Strip: http://www.newstarleds.com/productshow.asp?id=586)
Note:
1.Effective power for switch power is only 85% of power's label, so LED product's load power should be at least more than 15% when user choose feeding power.  

2. Make sure the right and stable anode and cathode when installing cables, and also attention to the driving voltage in case to damage components and fire accident when circuit pass through voltage.

3..Forbidden to connect cables when power on, putting power in cool place, so that it ensures approprite working temperature.  
  
4. Make sure strip's grade of waterproof. To install suitable conditions in accordance with practical IP.   

5. If it is crystal glue, please don't crook 30 degree, otherwise, it easily happens glue cracking

2014年10月16日星期四

Digital RGB decorative led strip lights

RGBW101 sk6812RGBW LED Strip

Digital RGB decorative led strip lights
NEWSTAR LED CO., LIMITED
1. This LED strip is easy to install,with long lasting brightness and low voltage
2. This LED strip is completely flexible, you can twist it into any shape.
3. This LED strip light is the coolest way to decorate any vehicles. It's safe for indoor and outdoor decoration.
4. Manykinds of color modes for choice.
5.Many flash types.
6.Can keep any one color.

Digital Pixel APA102 LED chip diodes:http://www.newstar-ledstrip.com/products-195.html              



A data cable, two power lines, 12MM wide swatches, built-in IC, 256 gray levels can be achieved by the controller any effect can also be achieved, text, numbers, English, pictures, animations, and so on. (Controller:NS-T1000S )


NEWSTAR LED CO., LIMITED
NS-T1000S System features

    132—256 Gray levelSupport software Gamma correction
2Support the rules and special-shaped handle.
3Single-port outputcan support 2048 pixels
4Off-line(SD Card) control, play back content stored on the SD card.
5T-1000S store a maximum of 16 programscopy multiple files to the SD card in order,
      after formatting the SD card as “FAT” format.
6The program must be named in orders . just as 00_1.led, 01_1.led, 02_1.led.
7Compatible with single line or double line chips.
NOTE1. When T-1000S controller control less than 512 lamps the frame rate can reach 30fps. When T-1000S control more than 512 lamps and less than 2048 lamps the frame rate will slow down automatically.
2. T-1000S must use the new software LedEdit 2013.

WSTAR LED CO., LIMITED
1.         Multiple T-1000S controllers can be cascaded together and work synchronously.
2.         T-1000S one TTL(SPI) signal and one RS485 signal port outputcan control 2048 pixels/lamps
3.         When the chip for LED is single line chip just with data, then just need to be connected with DAT and GND of the controller. If the chip for LED is double line chip with DAT and CLK, then need to be connected with DAT, CLK, and GND of the controller.
4.         If you need to use RS485 signal you need to connect controller A interface with LED lamps A (DMX+), controller B interface with LED lamps B(DMX-),

5.         If you need to control a new IC type by the controller software code mode isT-1000-IC model.


Application:
      1.Christmas/ Halloween show lighting;
2.For boat/barge decorations lighting;
3.Widely applicable as back lighting, cove lighting, decoration lighting,  for home furniture, club, bar, hotel, commercial center;      
4.Channel letter lighting using for stores, restaurants, bars;
5.Car interior and exterior lights;
6.Illumination lighting using walkway, canopy, stairway accent lighting, the amusement park; 

      7.Outdoor illuminated signs and advertisements.

NEWSTAR LED CO., LIMITED