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That depends on the current. The formula P=IV (where P is power in watts, I is current in amps and V is voltage in volts) is how you calculate the power. So if the current is 2 and the voltage is 3 then P=2x3=6Watts. Use an ammeter to determine the current.
Wiki User
∙ 13y ago
Wiki User
∙ 9y agoIt depends on the color of the LED you have.
A standard red LED needs 2 V and 20 mA to light up.
If you need to use white or purple LED the value will be improved to 4-5 volts.
Wiki User
∙ 10y agoA small LED will give some light output with a current of 30 mA so the power is 0.1 watt.
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Why do LED tail lights on a 96 civic blow the parking light fuse?
A thought. You may need a converter to change over to LED. I needed it for my motorcycle.
What does it mean LED?
LED: light emitting diode. It is a diode that emits light when current passes through it
What is the purpose of the light-emitting diod?
Light Emitting Diodes (or LED's) serve many purposes, such as statuses (EG Computer is powered on, PC is reading from Hard disk (Power and HDD LED's)). They can also be used to display messages (LED Boards) New age brighter LED's are used in the Audi and BMW cars as sidelights. 4 L1GH7 3M1771N6 D10D35 1S C001
For what does LED lights stand for?
Light Emitting Diodes
What does the electronics term LED stand for?
It actually means Light Emitting Diode. I hoped i helped :)
How many volts does 3 red led need to light?
6
How many amps does it takes to light up a led 100 watt?
You need the volts times the amps to equal 100 Watts. On 12 v that is 8.33 amps, or on 200 v is it 0.5 amps.
How can you make a LED light up on only one 1.2 volt battery?
A: WELL you cannot not with 1,2v most LED start emitting at 1.8 v some as high as 5 volts . two need at least two 1.2 volts better is 9 volts then there is a problem voltage wise but the problem is now that you need a limiting resistor to ensure at least 10ma of current
How many watts can an led need to light up?
It depends on the color of the led you have. Normally it changes between 1.5 V and 2.5 V. But if you need to use white or purple leds those leds need more power like 4-5Volts. Im gonna calculate for a standart red led, a red led needs 20 mA and 2 volts to light up. So we know the formula that we can calculate how many watts does the led need, P = U * I P = 2 * 0.02 = 0.04 W. I used the average values. I hope I didnt make any mistake :)
What is the luminous intensity of a tube light led and a 60 volts bulb?
Apples and oranges. The led quantity, quality and effeciency make all the difference. As far as a 60 volt bulb... How many WATTS?
How much voltage the infrared LED need to function?
Just under 2 volts
If you have two 3.6v led lights do you need a 7.2v battery?
No. Volts is the "pressure" of the electricity. If a single 3.6v led required 20 milliamps (amps is the "amount" of electricity) you would need to supply two of them with 40 milliamps but at 3.6 volts.
How do you convert 12 volts dc to 3 volts dc for LED?
Depends on the led forward bias threashold, if its a typical led it will be .7 volts so, .7x6=4.2V, so pick a resistor that will drop around 7 volts. What is the current? Then just to V=IR, 7=IR.
How does led light change color by volts?
Light energy W= qV=hf , then light frequency or color depends on energy qV here V is volts. Thus, f = qV/h = (240Thz/volt) V indicating infrared frequency/volt.
How do you make an led light?
A: LED NEEDS at least 1.8v to light and a current of at least 10ma. Try 2 AAA battery in series and a 70 resistor if it doesn't light it means the voltage must be greater the 1.8v it could 5v volts.
How many amps does a led light draw?
Depends on the size of the LED light and the voltage applied. An example is an LED 24 volt globe light that pulls 8 watts which draw 0.333333 amps. Take an LED 120 volt light bulb draws 12 watts and will pull 0.1 amps. The same bulb at 240 volts wil draw 0.05 amps. it really depends on the watts and voltage applied. An average would be about 0.1 amps.
How can a LED be used as a black light source?
You will need to purchase a UV LED.
