LED light

Theapplicaationofled                                                                                                                                                                 
TVset.
Monitor.
Telephone.
Computer.
Circuit board.
Status indicators.
Commercial use.
Advertising Signs.
Back lighting.
led lamp (led component,led indicator)
signal indicator
numeric and Alpha-numerica display
Automotive
Backlight
Flashlight for portable device
General illumination
Projector Light Source
Signage
Torchlight
Traffic LightLED

About led:                                                                                                                         Simply put, the light-emitting diode is a solid-state device, much different than an incandescent lamp. It comprises an alloy crystal  placed into a reflective cup and chemically bonded to tiny wires, then encapsulated in epoxy. When electric current runs through  those wires, the crystal material is excited. That excitement is dissipated in the form of energy, a small part of which is heat, most of which is in the form of light.
Different alloys produce different colors. Each has its own life span and brightness. LEDs' potential as a sign medium and light  source has been known from the start. Sourcing the proper chemicals and alloys has triggered intense research for many years. The  
future of all forms of illumination is at stake. leds are having very low power consumption.generally,a leds is designed to operate at 1.8-4.0v,0.02-0.03A current,that mean,it need  no more than 0.1w to operate.and,if the led is operated at a desired rated voltage,current and enviroment,its life could up to  100000hours.
Due to the special materials that used to make leds,during electrons transition,leds mainly emit electromagentic energy in the  visible parts of spctrum,unlike the incandescent filaments heated,which emit a lot of electromagnetic energy in the infrared part of  the spectrum which cannot be seen but is felt as heat.in other words,leds can convert almost all of the energy used into light,and  therefore,leds are of high luminous efficiency and low heat emitting.the best led in the market now emits 321lm/w,which is almost  twice as efficient as an equivalent tungsten-filament light bulb,and it has up to that 80lm/w,which is as bright as 30w fluorrescent 
lights in 2008.
LEDs are made from non-toxic materials,unlike fluorescent lights with mercury that will pose a pollution danger,leds are be recycled too.
the light-emitting device of led is completely embedded in an epoxy resin enclosure which is much more sturdy than the bulb and fluorescent tube,they are no loose and moving parts within the solid epoxy enclosure,this makes leds virtually iindestructible.

it's squareness LED.

its columniform and concave LED with flange

columniform and concave LED with flange