The high efficiency and directional nature of LEDs make them ideal for many industrial uses. LEDs are increasingly common in street lights, parking garage lighting, walkway, and another outdoor area lighting, refrigerated case lighting, modular lighting, and task lighting. EnergyWise Solutions LLC is one of the best commercial LED lighting supplies for contractors. For more details visit the energywisesolutions.com website.
Domestic, house lighting, street lighting, Industrial lighting area where LED can be applied for great effects in terms of conserving energy
Decorative lighting. General lighting in homes, offices, street lighting, industrial lighting sine LEDs provide more light per Watt compared to conventional light fittings, thus saving energy.
Sexual reproduction.
If your compairing apples to apples like 3 watt leds to 3w leds then 128. The more leds the higher the power.
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.
It can be done with 7 LED segments. More LEDs will be needed if a regular rectangular array is required, but many of these will never light and could be omitted to save money but then it would not be regular. The smallest standard regular rectangular array sold is 5 by 7 or 35 total LEDs, but this will display all alphanumeric characters and even then some LEDs will be unused unless other things are displayed too. Just guessing the smallest regular array is probably 3 by 5 or 15 total LEDs, but at most 13 of these LEDs would be used by the digits the other 2 LEDs could be omitted to save money. Such an array could be wired to be driven as a 7 segment display using a few ordinary diodes to light the 6 shared LEDs as part of multiple "segments".
red, green, yellow, blue leds
No.
Most modern torches have LEDs in them, several newer models of Audis do too.
SemiLEDS Corporation (LEDS) had its IPO in 2010.
It depend on what the rating voltage of the LEDs are.
Resistors don't light up LEDs. They're required in a circuit along with LEDs in order to prevent excessive current through the LEDs when the LEDs are forward biased. The correct resistance value depends on the supply voltage and the desired (rated) current through the LEDs, and there's typically one resistor in series with each LED.
The difference is that LEDs use less electricity.