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Sales Manager
Jack Wu
Mobile: 86-136 9983 9394
Skype: wellwaytech
Email: jack@wellwaytech.com
MSN: jack@wellwaytech.com
Full Color Waterproof SMD 5050LED Flexible Strip Light 30leds/60leds LED Strip Lamp Manufacture On Sale
Description:
•Waterproof and non-water proof 5050SMD led strip ,30led /m and 60led/m
•Yellow and white PCB board color for choose
Specifications:
Waterproof flexible 5050 SMD LED strip
Emitting color:RGB changing,cool white , Warm White
Light source: 5050SMD
LED quantity: 60leds/meter ,30leds/m, 120led/m
Width: 10mm / 12mm
Voltage: DC 12V
Viewing angle: 90 degrees
Silicone tube
CE certified and RoHS compliant
Product features:
Each 3LED cuttable with related mark on the strip
Energy saving only 2.4W per meter
Reel packing
With strong adhensive on back of the light for easy installati
Features:
1. Use 5050 /3528 type SMD
2. LED light Strip is fexible and can be bent at any angle
3. Solid-State, High Shock/ vibration-resistant
4. Maintenance free & long life
5. Low power consumption & Low voltage operates DC12V or DC24V
6. Fast and easy to install
7. High brightness with no color fade, available in single color & multiple color
8. 3M tape on the PCB back
9. Long Life span: 50,000
Applications:
1. Architectural decorative lighting.
2. Car decoration.
3. Archway, canopy and bridge edge lighting.
4. Amusement park, theater and aircraft cabin mood lighting.
5. Emergency hallway lighting.
6. Auditorium walkway lighting.
Customer Satisfaction:
Please do not hesitate to contact us if you have any questions or concerns before or after your purchase. We are committed to your 100% satisfaction.
Feedback:
Since your feedback is very important to our business`s development, we sincerely invite you to leave positive feedback for us if you are satisfied with our product and service. It`ll just take you 1 minute. Thank you!
After a Plank's Constant Determination lab in AP Physics B, I decided to experiment with the infrared diodes in the lab kit and see how well they're "seen" by the camera. As it turns out, very well. The diode that appears to be lit up a violet-white color (not the bright red one to its right) is an infrared diode emitting at a vacuum wavelength of ~940nm. Of course, since it's infrared, humans are incapable of seeing it, but despite the camera's IR filter, the CCD sensor sees the infrared just fine.
For those of you interested, Wikipedia has a nice article on infrared photography.
See also this picture, which I took of the same kit but with one of the visible light LEDs.
Just some test shots with a new 10 watt LED! It's soooooooo bright! :) I need to set up a deep cityscape to show it off properly.
{"focusMode":0,"deviceTilt":0.008876820094883442,"whiteBalanceProgram":0,"macroEnabled":false,"qualityMode":3}
Yesterday, I bought a non-working Canon FT QL with a Canon FL 50mm, f1.8 lens for $8. I have another FT QL, so I figured that I could use it for a parts camera. But that's not why I bought it - I wanted the lens as it's the early issue FL 50mm with the amber multi-coating (it was later changed to magenta.) Just this and the previous poppy photo, but it seems like a good lens so far.
Extreme conditions: periodic clouds, light pollution from the streets LED lamps, a lens developed to a small sensor attached in a camera with larger sensor, producing strong vignetting (1-inch sensor lens in an APS-C Fuji's camera), severe post-processing crop and so forth.
In the previous test with this lens the result is very bad in my opinion but in that time I didn't do a good review.
In Adobe Camera RAW the histogram was in the extreme right side in the base ISO 200 (exposure to the right) although the aperture two f-stops closed (from f/0.95 to f/2) and 8 seconds exposure time.
Of course, a lot of light came from urban area, including that one reflected by the clouds.
In the stacking process I have utilized only 25 frames without calibration ones.
The image result was clean!
The severe crop have solved the problem about the strong vignetting - the area of the sensor where no light is present - and star aberrations near the borders no compromising the image quality significantly.
The base ISO provided better star colors and we can distinguish the orange and blue stars in the image.
Conclusions:
Schneider-Kreuznach Xenon 25mm f/0.95 is a "jewel" in terms of optics.
The only flaw is not related to the lens but to the camera sensor size unespecific to it.
Probably I will have better results in a camera with 1-inch sensor size ou smaller (2/3 inch for example).
Lens distorsion is very low compared to other ones with the same or similar focal length.
Star aberrations have the same pattern of the urban lights at night street photography. In fact, aesthetically is very bad in f/0.95 even at the center of the image. In an one-inch sensor this condition won't be different. Unusable!
Targets as Barnard's Looping is very difficult in these climate conditions and urban area with severe light pollution.
Probably in a darker area, distant from the urban center, the colors of this nebula would can be bring in the post-processing easily.
Veredict: Wonderful lens in the specific sensor to which it was developed.
Officers from Operation Alloy targeted illegal vehicles yesterday as part of a national day of action to target metal theft.
During the day police stopped 24 vehicles and issued £3,800 of fines to drivers found to be flouting the law.
Two vehicles were seized for no insurance and a further four were immediately prohibited for defects.
Nineteen motorists received fixed penalty notices and officers also issued two traffic offence reports.
A further two drivers were summoned for no insurance.
Operation Alloy was launched in 2011 to deal with an increase in metal theft. Officers have worked relentlessly alongside the scrap metal industry and local authorities to target offenders and this has led to a 78 reduction in this type of crime.
In December 2012 Operation Alloy introduced the Legal Aid Sentencing and Punishment of Offenders Act which took cash out of the industry. Following on from this in October 2013 the Scrap Metal Dealers Act 2013 was introduced which required all sites and collectors to be licensed.
Superintendent Craig Thompson from the Operation Alloy team said: “Operation Alloy has seen some massive reductions in metal theft and as days like this show, we are committed to continuing our battle against this type of crime.
“Metal theft is far from being a victimless crime and it is our local communities that feel the effect of it. We’ve come a long way since the launch of the operation and will continue to disrupt offenders using every tool at our disposal.
“Help us in our fight against these criminals, please report unlicensed scrap dealers or metal collectors to police on 101 or call Crimestoppers anonymously on 0800 555 111.”
To find out more about Greater Manchester Police please visit our website.
You should call 101, the new national non-emergency number, to report crime and other concerns that do not require an emergency response.
Always call 999 in an emergency, such as when a crime is in progress, violence is being used or threatened or where there is danger to life.
You can also call anonymously with information about crime to Crimestoppers on 0800 555 111.
Crimestoppers is an independent charity who will not want your name, just your information. Your call will not be traced or recorded and you do not have to go to court or give a statement.
Hecha en Enero de 1978 hasta finales del 1980
Lente Carl Zeiss Triotar f/3.5-40mm
Medidor de luz con indicador LED en el visor
Velocidad de obturación van desde B, 1/30th-1/500th
ASA 25 hasta 1600
Bateria PX27
Número de Piezas realizadas 157,500
I used the lower LED as a tripod for the upper LED as part of the setup for this ring light illustrative image.
full setup is here
This is the copper-clad circuit board that the 128 LEDs are mounted to. The small board at the bottom is the circuit that rectifies the AC power and generates a constant current for each string of 32 LEDs.
An ATtiny13 uses PWM to fade 12 0603 surface mount green LEDs in and out, suspended from the PCB inside a jam jar. The ATtiny13 picks a random LED to flash each time, flashes it once, twice or three times randomly, then waits a random amount of time before flashing the next one. An incrementing counter is stored in EEPROM and used to seed the random number generator, leading to a different sequence each time the device is powered up via the switch mounted on the top. The LEDs are arranged in a standard 3x2 matrix which gives 6 LEDs, and for each position there is a second LED in reverse. The two column controllers are PB0 and PB1 as they can do PWM - another two LEDs could be added between PB0 and PB1 (and were on the prototype) but made the PCB design needlessly more complex: 12 is more than enough!
Watch the video of them in action here: uk.youtube.com/watch?v=0Yk0CZp2Ywc
Inspired by: www.instructables.com/id/Jar-of-Fireflies/http://negative...
More info and source files:
negativeacknowledge.com/2008/10/18/led-fireflies-in-a-jar...