0
Yes they do - it means the long stem is positive and must be connected to positive wires and the short stem to negative wires
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
Can a 3 volt battery light 5 leds?
It depend on what the rating voltage of the LEDs are.
What problems are there with reverse polarity?
Reversing polarity ,changes the rotation of the device you are changing polarity on.
What is the polarity of C Cl14?
Its polarity is zero.CCl4 is non polar
Why did it take so long to figure out how to make white LEDs?
There is no such thing as a white LED. You produce white light from LEDs by combining red, green and blue LEDs. Red LEDs were produced first because red is a low frequency of light. It was the easiest to make. Green LEDs were produced next because green is a higher frequency of light. It was harder to make. By combining red and green LEDs, you can produce yellow light. Blue is a very high frequency of light and is very hard to produce. Blue LEDs and blue lasers (as in BluRay) took a great deal of effort to create. LED technology and some kinds of laser technology are very closely related.
How can the degree of polarity be predicted?
The strength of polarity can be determined from looking at the level of polarity an object has. Polar bonds can make objects stronger or weaker.
How do you wire Bi-color LEDs?
Treat each color as a separate LED and wire accordingly. Be sure to observe the polarity of the component (anode and cathode +/-)
How do you wire Bi color LEDs?
Treat each color as a separate LED and wire accordingly. Be sure to observe the polarity of the component (anode and cathode +/-)
How LEDS are connected in seven segments display?
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.
Which is a more powerful light - 95 leds or 128 leds?
If your compairing apples to apples like 3 watt leds to 3w leds then 128. The more leds the higher the power.
Can you reverse polarity on a light?
Yes, with a retroreflector. One form of a retroreflector is 3 mirrors all mutually perpendicular like the corner of a cube.
When to connect LEDs in parallel?
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.
How many colors do LEDs come in?
red, green, yellow, blue leds
Are colored Christmas tree leds the same as the leds used in grow lights?
No.
What has LEDs in it?
Most modern torches have LEDs in them, several newer models of Audis do too.
In what year did SemiLEDS Corporation - LEDS - have its IPO?
SemiLEDS Corporation (LEDS) had its IPO in 2010.
Can a 3 volt battery light 5 leds?
It depend on what the rating voltage of the LEDs are.
What are two examples of polarity?
-- negative polarity -- positive polarity
