Yes they do - it means the long stem is positive and must be connected to positive wires and the short stem to negative wires
It depend on what the rating voltage of the LEDs are.
Reversing polarity ,changes the rotation of the device you are changing polarity on.
Its polarity is zero.CCl4 is non polar
The available color of LEDs are infrared, red, yellow, green, white, orange, blue, violet, ultraviolet and purple.
To find the total voltage needed for the LEDs, first calculate the total power by multiplying the number of LEDs by their power consumption: 12 LEDs * 3W = 36W. Then, divide the total power by the total current to find the voltage: 36W / 0.7A = 51.43V. Therefore, you would need approximately 51.43 volts for the 12 LEDs.
Treat each color as a separate LED and wire accordingly. Be sure to observe the polarity of the component (anode and cathode +/-)
Treat each color as a separate LED and wire accordingly. Be sure to observe the polarity of the component (anode and cathode +/-)
A: the LED can have all cathode tied together or all anode tied together. To alight them up all you need is the proper polarity input for each.
If your compairing apples to apples like 3 watt leds to 3w leds then 128. The more leds the higher the power.
Yes, LEDs are dimmable.
Yes, with a retroreflector. One form of a retroreflector is 3 mirrors all mutually perpendicular like the corner of a cube.
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.
No.
red, green, yellow, blue leds
It depend on what the rating voltage of the LEDs are.
SemiLEDS Corporation (LEDS) had its IPO in 2010.
Most modern torches have LEDs in them, several newer models of Audis do too.