LEDs are used in traffic lights, on computer lights, car lights and indicators. You can also purchase LED flashlights and torches. Can be used in small devices for a variety of uses.
fluorescent, LEDs
optical triggering device
Rechargeable flashlights. Some TV's. A wrist watch.
Multimode fiber (MMF.
If your compairing apples to apples like 3 watt leds to 3w leds then 128. The more leds the higher the power.
List five uses of permanent stitches
Yes, LEDs are dimmable.
Plug into speaker jacks
Basically, when LEDs are connected in parallel, the LEDs with the lowest resistance will be the brightest, the other LEDs will be dimly lit or not lit at all. Therefore, use LEDs with the same model number and colour.
indicator lamplight sourcereading lightdye laser pumppixel on flat panel displaybacklight on LCD flat panel displayetc.
LEDs have many practical at home uses as well as military uses. The leds at home can range from car headlights to emergency self defense lights or simply LED bulbs that can replace your old ones. Since LEDs are more efficient while bring more light they can cut down on power bills. Then you have people who need them for high stress situations such as police officers and military personnel. There are lights that can reach up to 1/4 of a mile on single batteries.
Detailed list: http://en.wikipedia.org/wiki/Seaweed#Uses