High-efficient LED Light Bulbs.
Lightbulbs are devices used for producing light from electricity mostly for lighting dark areas. There exists various types of light bulbs with the common ones being LED light bulbs and compact fluorescent (CFs) light bulbs.LED light bulbs are solid-state lighting devices that are capable of fitting in standard screw-in connections and they utilize LED. Light emitting diodes is the short form for LED used to generate light in bulbs. The bulbs produce visible light by the use of a semiconductor device every time an electric current pass through it. Compact fluorescent light bulbs utilize fluorescent light bulbs filled with an inert gas argon and a little amount of heavy metal mercury. Argon gas and mercury in the fluorescent lamb are hit by negatively charged electrons produced when the cathode is heated. The excited mercury produces ultraviolet light (UV) which is not visible. The UV light is then passed through a phosphor which causes it to emit more visible light. Mercury is a heavy metal being utilized by CFs light bulbs and very harmful to the human health hence the CFs light bulbs are not environmentally friendly.
The energy efficiency of the LED and CFs light bulbs varies considerably with the LED light bulbs being more efficient. The LED light bulbs do not require time for warming up as they start instantly once electricity is switched on. LED light bulbs are made from plastics which makes them more durable than other types of light bulbs made from glass. Thy work quite well in cold weather. CFs light bulbs utilize a lot of energy in lighting and are also not long lasting making them cost ineffective.
When purchasing an LED light bulb, lumen should be considered other than the wattage. Lumen is the real measurement of the brightness provided by a light bulb while wattage is the measurement of how much energy a light bulb draws. CFs and LED light bulbs could have the same number of lumens but the wattage of CFs would be higher than that of LEDs. Other consideration when purchasing a light bulb is the color need since they have a wide color range and also where the bulb is to be used. The measurement of color temperature is kelvins and the lower the number, the yellower the color. Converting alternating current from power supply to direct current usable by LED light bulbs requires an LED driver.
LED light bulbs which are viable for even larger scale lighting have been developed recently and have well and improved efficiency, output, and cost. When installing LED light bulbs, compatibility with fixtures should be checked to avoid excess heat which can lead to failure or fire.