Which are LEDs main advantages?
LEDs offers multiple advantages compared to traditional light sources and initial higher price is easily compensated by all of them:
less power consumption due to the production of light and not heat;
very quick lighting up and ideal for uses subject to frequent on-off cycling;
very small sizes.
What is the quality of the LED light?
LEDs emit more light per watt than incandescent light bulbs.
They make possible the emission of light of an intended color without using any color filters as traditional lighting methods need. This is more efficient and can lower initial costs.
Moreover LEDs radiate very little heat in the form of IR that can cause damage to sensitive objects or fabrics.
Wasted energy is dispersed as heat through the base of the LED.
LEDs can be designed to focus light and direct it in a usable manner while many light sources are usually deployed, which are difficult to focus or collimate towards the same target.
Is LEDs lighting up slow?
Absolutely not: LEDs lighting up is very quick. For instance, red LEDs used like indicators, can reach maximum brightness in a few microseconds. This is why LEDs are ideal for uses subject to frequent on-off cycling unlike fluorescent lamps that fail faster when cycled often or High-intensity discharge lamps that require a long time before restarting.
Moreover LEDs can very easily be dimmed, which means brightness may be varied using a simple light switch device.
What is a LED size?
LEDs can be very small, even less than 2mm.
Do LEDs burnt out?
No, they usually do not. Generally a gradual lowering of light output and loss of efficiency occur. Sudden failures, although very rare, can occur as well.
Are LEDs fragile?
LEDs are difficult to damage with external shock, unlike fluorescent bulbs which are fragile.
Is that true LEDs are toxics?
Esattamente il contrario: i LED non contengono mercurio, al contrario delle lampade a fluorescenza.