Ads
related to: fluorescent filament price chart singaporeikea.com has been visited by 100K+ users in the past month
Search results
Results From The WOW.Com Content Network
A fluorescent lamp, or fluorescent tube, is a low-pressure mercury-vapor gas-discharge lamp that uses fluorescence to produce visible light. An electric current in the gas excites mercury vapor, to produce ultraviolet and make a phosphor coating in the lamp glow.
A CFL has a higher purchase price than an incandescent lamp, but can save over five times its purchase price in electricity costs over the lamp's lifetime. [1] Like all fluorescent lamps, CFLs contain toxic mercury, [2] which complicates their disposal. In many countries, governments have banned the disposal of CFLs together with regular garbage.
60 W incandescent light bulb with energy efficiency class E Equivalent 42 W halogen incandescent light bulb with efficiency class C Compact fluorescent lamp LED lamp. Various governments have passed legislation to phase out manufacturing or importation of incandescent light bulbs for general lighting in favor of more energy-efficient alternatives.
In fact, the first British fluorescent lamps were designed to operate from 80-watt mercury-vapor ballasts. There are also self-ballasted mercury-vapor lamps available. These lamps use a tungsten filament in series with the arc tube both to act as a resistive ballast and add full spectrum light to that of the arc tube.
LED lamps provide significant energy savings over incandescent and fluorescent lamps. [59] According to the Energy Saving Trust, LED lamps use only 10% power compared to a standard incandescent bulb, where compact fluorescent lamps use 20% and energy saving halogen lamps 70%. The lifetime is also much longer — up to 50,000 hours.
Get this 'luxury hotel'-like queen set while it's at an all-time low price of just $16. See all deals. In Other News. Entertainment. Entertainment. USA TODAY.