Yielding light from electricity requires light bulbs and are a necessity 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 diode is a semiconducting chip that is able to produce visible light once electric current pass through it. Fluorescent bulbs filled with argon gas and a small amount of mercury are employed for use in compact fluorescent light bulbs. The cathode in the fluorescent lamps is heated and produces electrons which hit the argon gas and mercury. 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. LED light bulbs are therefore considered to be more environmentally friendly alternative as they do not use mercury which is toxic.
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. They are manufactured out of plastic other than the most used glass making them more durable. Cold weather is not a limiting factor of LED light bulbs to work properly. LED and CFs light bulbs have the same lighting conditions although the LEDs last longer as use less energy making them cost effective.
Lumen of light bulb should be one of the major consideration other than wattage during purchase of the LED light bulbs. Measuring the energy amount a light bulb draws is wattage units while measuring the brightness a light bulb produces is done by lumen units. CFs and LED light bulbs could have the same number of lumens but the wattage of CFs would be higher than that of LEDs. Choosing an LED light bulb to purchase requires one to decide the color needed from the wide array of color ranges and where the bulb is to be used, Kelvins are the measurement units for color temperature and a lesser number shows a yellower color. An LED driver is key during purchase of LED light bulbs for converting the alternating current from the power supply to direct current used by the LED light bulbs.
LED light bulbs which are viable for even larger scale lighting have been developed recently and have well and improved efficiency, output, and cost. LED light bulbs should be checked for compatibility for use in fixtures during installation as heat build-up can cause light bulb failure or even fire.