They are extremely efficient in their use of energy for producing light. Better even than compact fluorescents, and they do not liberate Mercury into the einvironment over their lifetime as CFs do. There are some adverse effects in their manufacture, and eventual disposal... as with any "product".
It depend on what the rating voltage of the LEDs are.
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.
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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.
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.
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.
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LEDs work best where you need bright, focused light and want to save energy. Their greatest effect is seen in: Home lighting – Long life and low bills Street and outdoor lights – Tough, weather-friendly Offices and factories – Clean, bright light for long hours Retail and display lighting – Makes products pop Film and photography – Gives steady, adjustable light without heat For creative pros, brands like Neewer and Aputure offer LED lights for shoots. But if you want studio-grade gear made for serious projects, Ilfords Cine Lighting Equipment on Pepagora is worth checking out. Their lights are made for filmmakers, ad creators, and photographers who need quality without the hassle. They know what you go through on set—and it shows in what they build.
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higher prices for consumers
No.
red, green, yellow, blue leds
LEDs come in different types based on how they’re used. The most common ones are: Miniature LEDs – Used in remote controls, indicators, toys High-Power LEDs – Bright and long-lasting, used in industrial lights RGB LEDs – Change colors, great for displays and mood lighting SMD LEDs – Found in strip lights, TVs, and flat panels COB LEDs – Give strong, focused light, perfect for spotlights and studio setups Bi-color & Tri-color LEDs – Offer multiple colors in one unit If you’re looking for professional lighting—like for film, photo, or ad shoots—brands like Godox and Aputure offer solid options. But for serious, high-performance studio lighting, Ilfords Cine Lighting Equipment (available on Pepagora) brings lighting tools that are built for creators. Whether you’re an indie filmmaker or running a small production team, they understand your struggle for quality lighting without blowing the budget. It’s made for creators, by people who get it.
Yes, environmental conditons can effect a community in a way that if a frog which have a moist skin if live in desert its moist skin would dry out to quickly in this way environmental condition do effect the way a community work
Most modern torches have LEDs in them, several newer models of Audis do too.