Development of street lighting system-based novel high-brightness LED modules
The development of high-power light emitting diode (LED) for street lighting is a continuously evolving topic. greater energy efficiency, long operating life and light control are the major plus points of this technique. 9LEDM (9-LED module) and adaptive driver based alternative lighting system is shown here. thermal, photometric, power electronics techniques have been used to create the 9 LEDM. The 9LEDM offers a price less than 1$/Watt (W) and luminous fl ....etc

[:=Read Full Message Here=:]

I feel as though there are many individuals on this site who haven't had the opportunity to see what our customers are doing with our products . I know browsing through thread after thread to see results can be daunting, so I've gone ahead and collected photos from many various grow demonstrations that are either completed, near completion, or in progress to show you that the future of lighting technology is here!
....etc

[:=Read Full Message Here=:]

I feel as though there are many individuals on this site who haven't had the opportunity to see what our customers are doing with our products . I know browsing through thread after thread to see results can be daunting, so I've gone ahead and collected photos from many various grow demonstrations that are either completed, near completion, or in progress to show you that the future of lighting technology is here!


-------------
surefire led flashlight
[url=http://flashlight4surefir ....etc

[:=Read Full Message Here=:]

Download good GB John bokf good Lloyd used play x day John like his some but and ke ....etc

[:=Read Full Message Here=:]

please give the information of quiz circuit with advantages & disadvantages ....etc

[:=Read Full Message Here=:]

A Light emitting diodes (LEDs) have gained broad recognition as the ubiquitous little lights that tell us that our monitors are on, the phone is off the hook or the oven is hot semiconductor.

The basic principle behind the emission of light is that: When charge carrier pairs recombine in a semiconductor with an appropriate energy band-gap generates light. In a forward biased diode, little recombination occurs in the depletion layer. Most occurs in a few microns of either P- region or N ?region, depending on which one is lightly doped.

LE ....etc

[:=Read Full Message Here=:]

STREET LIGHTING SYSTEM



In India you must have seen many places where Street Lights will be ON whether its day time or night or worst is the case when it will be ON for 24 hours. This wastes lots off electricity and to save energy is one of the most important tasks nowadays where our resources are being finished.

This project consists of an RTC which is responsible for generating time. We will write the program such that depending on the time the light will be ON or OFF.

In place of RTC we can use LDR which will see the brightness ....etc

[:=Read Full Message Here=:]

INCORPORATING WIRELESS POWER TRANSFER IN AN LED LIGHTING APPLICATION


INTRODUCTION

THE BEGINNING OF WPT
Electricity by today’s standards is considered an essential to life. Electricity has been the fuel for technological development since its first applications dating back to the late 16th century. This marvelous phenomenon, however, comes with a price. The cost of maki ....etc

[:=Read Full Message Here=:]

Presented By
S V PRAMOD
M SUNIL KUMAR REDDY


WHAT IS A LED
 Solid state semiconductor device.
 Releases energy in the form of photons.
ELECTROLUMINESCENCE.
 Refractive Indices.
 E=qV (joules)
TYPES OF LED
 WHITE LEDs
 PHOTONIC LATTICE
 ORGANIC LEDs
 MINIATURE LEDs
 HIGH POWER LEDs
 SUPER FLUX LEDs
 ALPHANUMERIC LEDs
RADIATION PATTERN AND VISIBILTY CONSIDERATIONS
 LEDS ARE HIGHLY DIRECTIONAL
 LED's luminous intensity is half the ....etc

[:=Read Full Message Here=:]

a poly house for 8 th std competition of science model
requirement - some wet soil without any big stones, some cutted bambu sticks and the polythene to cover the plant. ....etc

[:=Read Full Message Here=:]