Lights Bulb
Lights Bulb
Why does a bulb light up instantly but a tubelight lights up after some time flickering ?
Because when an electric charge is passed through the tungsten filament it glows instantaneously. A fluorescent tube has no filament, just gas - usually argon - and an inner fluorescent coating. The gas has to get up to temperature before it can sustain a constant current and cause the coating to react with it and glow. This usually takes a few seconds and is the time when the light is using the most electric current.
http://home.howstuffworks.com/light-bulb2.htm
http://home.howstuffworks.com/fluorescent-lamp5.htm
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Multi-Color E27 LED Light bulb w/ Remote List Price: $49.99 Sale Price: $27.89 Average Rating:   |
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Light-emitting diodes are darn cool and have found uses in so many places - traffic lights, standard lightbulb sockets and high-powered flashlights to name a few. The Multi-Color LED Lightbulb is a super bright LED bulb that can transition through dozens of color and rightness combinations and is compatible with a standard lightbulb socket... |
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Full Spectrum Light Bulb - ALZO 27W Compact Fluorescent - Case of 4 - Daylight Balanced 5500K - Pure White Light Sale Price: $21.47 Average Rating: |
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Case of 4 full spectrum light bulbs that imitate daylight, are energy star compliant, and have a long life at circa 10,000 hours with 1300 Lumens output; low energy consumption, good for treating Seasonal Affective Disorder S... |
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CC.Vivid Plus 36-LED Light Bulb List Price: $29.95 Sale Price: $6.00 Used From: $6.49 Average Rating:  |
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This bulb has a clear dimpled globe that smoothly disperses the light. With 36 LEDs inside the bulbs light has a bright cool white color yet consumes less than 3 watts of power. Made out of high strength plastic this bulb is built to last. |
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ALZO Digital Full Spectrum Light Bulb - ALZO 45W Photo CFL 5500K 91 CRI, Daylight balanced, pure white light, 2800 Lumens, Case of 4 Sale Price: $35.10 Average Rating: |
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Case of 4 full spectrum light bulbs for daylight balanced lighting, energy star compliant, long-lasting at cir. 10,000 hours with 2800 Lumens output; low energy consumption, good for treating S.A.D. (Seasonal Affective Disorder), photo studio lights, or starting plant growth... |
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Dimmable E26 A60 Standard Household Base 50 Watt Incandescent Light Bulb Replacement with a 6 Watt LED, Warm White, 1012ww Sale Price: $22.00 Average Rating:  |
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So many of our customers have been asking for a fully dimmable standard replacement light bulb in the 40-50 watt light output range and after a lot of searching, we are pleased to finally be able to offer one that has the high quality and reliability you've come to expect... |
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Zelco Itty Bitty Book Light Replacement Bulbs, Set of 2 Sale Price: $6.99 Average Rating: |
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Designed by Zelco, these two little bulbs keep your Itty Bitty book light going strong. With the same cool, no-glare shine of the bulb that came with your lamp, the bulbs are optical quality and cast a shadowless glow... |
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FML27/65 27W Replacement Light Bulb YDW-27FM PL-4026 FML27/EX-D FML27EX/N Sale Price: $6.79 Average Rating: |
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This 27 Watt Replacement Lamp Bulb is equivalent to FML27/65, YDW-27FM, PL-4026, FML27/EX-D, FML27EX/N, FML-27W T506, 49315, 9024BC, 9024B, FML-27-EX-D, EK 0627, BN-702B, BN-702W, FML27W65K, FML27W6500K, Eiko 011920, FML27EXD, FML27/EX-D, FML27EX/N, H-2705M, FML-27W 6400K... |
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C. Crane BNB Bright Night LED Nightlight Bulb Sale Price: $4.49 Average Rating: |
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Save $40 over 7 Years! Fits Most Standard Night Lights Two Year Warranty!1.3 Watts 5 Bright White LEDS Energy Efficient Cool-RunningLEDS, or "light emitting diodes", are a major breakthrough in lighting technology... |
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27 Watt MyGift Fluorescent Linear Quad Replacement Light Bulb for Light of America Floor Lamp or Desk Lamp Sale Price: $5.80 Average Rating:  |
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MyGift Generic Fluorescent Replacement Light Bulb for the Light of America Desk Lamp and Floor Lamp. Gives natural soft light that good for eyes, best for reading and giving warm light to your house. Compatible with these models: Light of America Desk Lamp #6027 1127 1127CH 1227 1227BKRT 1227BN 1327 1327BK 1147TR 9011 9012 9024 9027 |
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50 Watt PAR20 Narrow Flood Light Bulb / 30 Degree Beam Spread / 120 Volt / 50PAR20 List Price: $8.95 Sale Price: $2.50 Average Rating: |
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50-watt PAR20 tungsten halogen bulb with narrow flood beam, reflector finish and E26 medium base. Average rated life of 2500 hours. Line voltage. DL # 16763. |
How a light bulb works
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