LED lamps are the most efficient and durable of their kind, but also the most expensive. However, the price has dropped significantly since we first tested it in 2013. They use up to 80% less energy than incandescent bulbs for the same amount of light. Most LEDs should last at least 15,000 hours – more than 13 years if used three hours a day.
Compact fluorescent lamps (CFLs) are smaller versions of fluorescent lamps commonly used in offices and commercial buildings. They use a small tube filled with glowing gas. CFLs are generally less expensive than LEDs and have a lifespan of at least 6,000 hours, which is about six times longer than incandescent bulbs but much shorter than LEDs. They take a few seconds to reach full brightness and disappear over time. Frequent switching will shorten its life.
Halogen bulbs are incandescent bulbs, but they are about 30% more efficient. They are most commonly found in homes as low-voltage downlights and spotlights.
The incandescent light bulb is a direct descendant of the first light bulb, patented by Thomas Edison in 1879. They work by passing an electric current through a filament. They are much less efficient than other types of lighting and also have a shorter lifespan.
Watts measure power consumption, while Lumens measure light output. Wattage is not the best measure of LED brightness. We found significant differences in the efficiency of LED lamps.
As a rule, LEDs produce the same amount of light as an incandescent lamp, but five to six times more powerful.
If you are looking to replace an existing incandescent light bulb with an LED one, consider the wattage of the old incandescent light bulb. The packaging of LEDs usually lists the equivalent wattage of an incandescent bulb that gives the same brightness.
If you are looking to buy an LED to replace a standard incandescent bulb, chances are the LED will be brighter than the equivalent incandescent bulb. This is because LEDs have a narrower beam angle, so the light emitted is more focused. If you want to buy led downlight,recommend you www.lediant.com
Post time: Feb-20-2023