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They do not get nearly as hot because they convert electricity to light much more efficiently. Most of the energy goes to light not hear. How this is done is pretty complicated though. Wikipedia LED if you want to know more.
Wiki User
∙ 16y ago
Wiki User
∙ 11y agoSorry but I don't think there is a simple answer to this question. It depends on what temperatures, voltages, current, the specific LED was designed for. I think LED lamps and flashlights can run hot.
I've heard that is the reason LED light bulbs took so long to go mainstream- they were too hot and burned out.
Bottom line- I guess it depends what application you are using the LED's in. As a general rule, if you are modding with standard LED's, maybe pulled out of another product, a good guideline would be to use the highest (ohm) resister you can while still getting the desired brightness. Just make sure the resistor is rated for the wattage in your circuit.
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How you know whether a cold or hot fluid is passing through a pipe?
Touch it. If you know its going to be hot, but are unsure as to how hot it will be, then as bad as it is, spit on it. If it steams off, you know its very hot. If it slowly evaporates you know you can probably touch it carefully, and if it stays there its not hot. However, use a laser thermometer if you have one, or look at the process that the pipework is on. If its coming off a high temp vessel, it probably will be hot.
Are led lights dangerous if place in a wooden box?
Sometimes it is but depends how hot the light gets.
What did Dr Samuel Hurst invent in 1971 that led to the development of touch screen technology?
Dr. Samuel Hurst invented the Electronic Touch Interface in 1971. ....... You're welcome... The AZN Sensation, Cuong Do
Kitchen floor feels hot to the touch house is on a cement slab?
Sounds like a broken line under the slab
Why electrodes get red hot during welding?
They shouldn't. When using the correct electrode and amperage they will get hot but not red hot. Uncoated electrodes do get red hot but are not used in most applications. Too much amperage is usually the problem.
Why cant metal utensils get too hot to touch them?
Metal utensils CAN get too hot to touch.
What happens when you touch hot water?
If it`s too hot you could get burned.
What do you do when you touch somehing hot on your fingers?
It is natural for the brain to respond of touch something too hot to handle by pulling the fingers away from it.
Why can metal utensils get too hot to touch when you're cooking cooking with them?
Metals are good conductors of heat. If too much of the heat you're using to Cook the food items go into the utensils, they can become too hot to touch.
At what temperature in Fahrenheit is water too hot to touch?
Without injury, water can be too hot to touch when it reaches 130 to 135 degree Fahrenheit. Water will start to boil when it reaches 212 degree Fahrenheit.
What is the meaning of utinsils?
Utensils are tools to handle food so you don't have to touch them. This is especially useful when foods are too hot to touch.
What is Alexander Ovechkins Signature move?
after he scores a goal his signature move is to pretend his stick is on fire and too hot to touch. he crouches down to the floor where his stick is then he moves his hands up and down pretending its on fire or too hot to touch!
When should you remove a cupcake from the baking pan?
when its not too hot so its cool enough to touch
Is Earth's core too hot to touch?
Earth's core is an essential part of it, it also has molten parts or components. So, yes, it's hot. :)
Which system warns a person that the soup is to hot to drink?
The nervous system warns us that foods are too hot to eat or drink, by our sense of touch.
Do water heaters get hot to the touch?
Yes, they get very hot to the touch.
What is thermochromic dye used for?
They are used for making sure that a baby's bottle or a kettle is not too hot to drink or touch.
