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LOT OF 6 NEW NIB GE QUARTZLINE TUNGSTEN-HALOGEN LAMP Q150CL/DC (S23K1) |  |
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US $12.00 | 22d 10h 15m |
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Philips Tungsten Halogen Lamp ETC 150Q/CL/DC | |
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US $9.75 | 16d 6h 57m |
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Philips Tungsten Halogen Lamp NEW Lot of 12 250Q 120V | |
0 Bid | US $14.00 | 1d 12h 32m |
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Lamp Holder Light Socket Tungsten-Halogen R7s RX7s | |
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US $5.95 | 10d 6h 15m |
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750Q/CL Sylvania 750w 120v Tungsten Halogen Lamp Bulb | |
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US $9.99 | 28d 12h 27m |
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Lots of (10) New Tungsten Halogen Lamp Bulb E11 130v 100 Watt candelabra base | |
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US $16.99 | 6d 17h 9m |
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Lot 4 Philips Tungsten Halogen Lamps 150Q ETG & ETC NIB | |
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US $14.99 | 27d 2h 38m |
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2each 9674A 300 Watt Q300T3 QCL FB 130 Volt Pin bulb Tungsten Halogen Lamp light | |
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US $4.25 | 17d 14h 38m |
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Lots of (10) Tungsten Halogen Lamp bulb Long life 12v 20w MR11 FTB/C 20watt | |
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US $15.50 | 6d 18h 40m |
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Lot 5 Philips Tungsten Halogen Lamps 150Q ETH 120V NIB | |
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US $18.99 | 26d 9h 5m |
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Sylvania 250Q/CL/DC ESS Tungsten Halogen Lamp 250W 120V | |
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US $14.99 | 25d 15h 32m |
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General Electric Type: Q250CL/MC Clear Tungsten-Halogen Lamp. 250W, 120V | |
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US $19.99 | 25d 13h 57m |
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Genuine Philips 150 Q ETH 120V 150W 150Q Tungsten Halogen Lamp | |
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US $9.99 | 24d 6h 47m |
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Sylvania DYH Tungsten Halogen Lamp Bulb 600w 120v 75hr Lot of 2 | |
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US $24.99 | 24d 4h 36m |
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LOT OF 5 NEW NIB GE QUARTZLINE TUNGSTEN-HALOGEN LAMP Q150CL/DC (S23K1) | |
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US $10.00 | 22d 10h 11m |
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Tungsten Halogen Lamp 277V 1500W | |
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US $10.99 | 22d 9h 34m |
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Radiac EPN Tungsten Halogen Lamp | |
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US $12.00 | 21d 9h 12m |
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GE - ESS Q250CL/DC 250W 120V 43697 ESS Tungsten - Halogen Lamp | |
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US $5.99 | 20d 5h 15m |
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Lot 8 Philips Tungsten Halogen Lamps 150Q 120V ETH NIB | |
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US $23.99 | 19d 8h 55m |
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9 Piece Lot GE Lighting Q50MR16/FL(EXN) Tungsten Halogen Lamp 50W Bulbs NEW | |
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US $34.00 | 18d 11h 58m |
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Newport 69931-0250 250W Power Supply for Quartz Tungsten Halogen Lamps & IR | |
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US $800.00 | 25d 11h 20m |
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Tungsten Lamp
How is it possible for a halogen lamp to operate with the filament at 2700 degree .....?
How is it possible for a halogen lamp to operate with the filament at 2700 degree Celsius when the tungsten would normally decompose/oxidize at this high temperature?
and:
Is such a high operating temperature desirable?
The molecules do burn off the filament but as they are enclosed in a quartz bulb w. a special gas they buzz around until they settle back down on the filament time and again.
In some applications the heat is the whole point, halogen cookers, usually it's just not relevant.
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LOT OF 6 NEW NIB GE QUARTZLINE TUNGSTEN-HALOGEN LAMP Q150CL/DC (S23K1) | |
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US $12.00 | 22d 10h 15m |
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Philips Tungsten Halogen Lamp ETC 150Q/CL/DC | |
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US $9.75 | 16d 6h 57m |
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Philips Tungsten Halogen Lamp NEW Lot of 12 250Q 120V | |
0 Bid | US $14.00 | 1d 12h 32m |
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Lamp Holder Light Socket Tungsten-Halogen R7s RX7s | |
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US $5.95 | 10d 6h 15m |
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750Q/CL Sylvania 750w 120v Tungsten Halogen Lamp Bulb | |
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US $9.99 | 28d 12h 27m |
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Lots of (10) New Tungsten Halogen Lamp Bulb E11 130v 100 Watt candelabra base | |
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US $16.99 | 6d 17h 9m |
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Lot 4 Philips Tungsten Halogen Lamps 150Q ETG & ETC NIB | |
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US $14.99 | 27d 2h 38m |
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2each 9674A 300 Watt Q300T3 QCL FB 130 Volt Pin bulb Tungsten Halogen Lamp light | |
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US $4.25 | 17d 14h 38m |
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Lots of (10) Tungsten Halogen Lamp bulb Long life 12v 20w MR11 FTB/C 20watt | |
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US $15.50 | 6d 18h 40m |
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Lot 5 Philips Tungsten Halogen Lamps 150Q ETH 120V NIB | |
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US $18.99 | 26d 9h 5m |
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Sylvania 250Q/CL/DC ESS Tungsten Halogen Lamp 250W 120V | |
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US $14.99 | 25d 15h 32m |
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General Electric Type: Q250CL/MC Clear Tungsten-Halogen Lamp. 250W, 120V | |
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US $19.99 | 25d 13h 57m |
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Genuine Philips 150 Q ETH 120V 150W 150Q Tungsten Halogen Lamp | |
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US $9.99 | 24d 6h 47m |
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Sylvania DYH Tungsten Halogen Lamp Bulb 600w 120v 75hr Lot of 2 | |
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US $24.99 | 24d 4h 36m |
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LOT OF 5 NEW NIB GE QUARTZLINE TUNGSTEN-HALOGEN LAMP Q150CL/DC (S23K1) | |
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US $10.00 | 22d 10h 11m |
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Tungsten Halogen Lamp 277V 1500W | |
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US $10.99 | 22d 9h 34m |
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Radiac EPN Tungsten Halogen Lamp | |
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US $12.00 | 21d 9h 12m |
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GE - ESS Q250CL/DC 250W 120V 43697 ESS Tungsten - Halogen Lamp | |
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US $5.99 | 20d 5h 15m |
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Lot 8 Philips Tungsten Halogen Lamps 150Q 120V ETH NIB | |
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US $23.99 | 19d 8h 55m |
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9 Piece Lot GE Lighting Q50MR16/FL(EXN) Tungsten Halogen Lamp 50W Bulbs NEW | |
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US $34.00 | 18d 11h 58m |
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500Q/CL Sylvania 500w 130v Tungsten Halogen Lamp Bulb | |
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US $9.95 | 17d 5h 49m |
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1000T6Q-CL Sylvania 1000w Tungsten Halogen Lamp Bulb | |
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US $9.95 | 17d 5h 49m |
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100/Q/DC Sylvania ETD 100w Tungsten Halogen Lamp Bulb | |
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US $9.95 | 17d 5h 49m |
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Lot of 13 Eiko Q1000T3/CL Quartzline Tungsten-Halogen Lamp 1000W 240V 254MM | |
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US $88.88 | 16d 6h 54m |
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GE Quartzline Q100CL/DC Clear Tungsten-Halogen Lamp | |
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US $13.99 | 15d 4h 41m |
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Newport 69931-0250 250W Power Supply for Quartz Tungsten Halogen Lamps & IR | |
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US $800.00 | 25d 11h 20m |
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Newport 69931-0250 250W Power Supply for Quartz Tungsten Halogen Lamps & IR | |
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US $800.00 | 25d 11h 19m |
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NRC Newport Research Corp Model 780 Lamp Supply w/Tungsten Halogen Light Source | |
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US $150.00 | 5d 13h 33m |
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2x650W+300W+150W 4 kits Fresnel Tungsten Light +stands+Lamps+flight box | |
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US $815.00 | 24d 10h 20m |
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1 lot of 50 K Light ( KLight) J118 110-130V 300 Watt Tungsten Halogen Lamps NIB | |
0 Bid | US $15.00 | 6h 57m |
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Sylvania Projector Lamp Bulb DNE 150W 120V Tungsten Halogen Quartz Tru Beam NIB! | |
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US $15.99 | 15h 4m |
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Westcott #553 100 Watt Frosted Tungsten Halogen Lamp | |
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US $3.00 | 15h 10m |
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Sylvania GTE DYS DYV BHC 600W 120V 75 hrs hours Tungsten Halogen lamp bulb | |
0 Bid | US $2.99 | 15h 28m |
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Sylvania Tungsten Halogen Lamp DYP 600W 120V 75 hrs hours bulb light | |
0 Bid | US $1.99 | 15h 34m |
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18x 25W CLEAR CANDLE DIMMABLE TUNGSTEN FILAMENT LIGHT BULBS; B22 BAYONET BC LAMP | |
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US $15.62 | 4d 1h 28m |
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Philips Tungsten Halogen Lamp NEW Lot of 12 250Q 120V | |
0 Bid | US $14.00 | 1d 12h 32m |
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Philips Tungsten Halogen Lamp Bulb 250Q/CL 130V | |
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US $6.00 | 25d 6h 6m |
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3×650W Kits Fresnel Tungsten Light Lighting Film Studio Video +lamps+stands | |
0 Bid | US $618.99 | 2d 10h 24m |
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Daylight U33200 Professional Artist Lamp, 18W Natural Light Tube Bulb Equals 100W Tungsten, Portable with Flexible Arm, Clamps for Stand, Easel, Table $199.99 Daylight U33200 Professional Artist Lamp, 18W Natural Light Tube Bulb Equals 100W Tungsten, Portable with Flexible Arm, Clamps for Stand, Easel, Table |
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Jabsco 3 x 5 Tungsten Halogen Floodlight $65.34 45900 FloodlightTungsten Halogen FloodlightJABSCO Tungsten Halogen Floodlight is designed to evenly light any horizontal surface. Unique trapezoidal light beam allows light to spread with even intensity when lamp is mounted from above at one end of a work area. Ideal for lighting deck or work surface from cabin top spoiler or Tuna Tower. Great for R.V. use such as lighting a campsite. Also ideal for emergency vehicles.Product : JABSCO 3 X 5 TUNGSTEN HALOGEN FLOODLIGHT Manufacturer : JABSCO Manufacturer Part No : 459001000 UPC : 671880039086 |
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Adapta-Light A5 250 Watt Tungsten Flood Light with 5 Reflector $41.94 Adapta-Light A5 250 Watt Tungsten Flood Light with 5" Reflector 5" diameter reflector with lamp socket that yields a 60 Degree beam with a 250 watt lamp. Designed to be used with a photoflood lamp of up to 500 watts, the Adapta-Lights quickly mount to any 3/8" lightstand or stud. Lamps not included.Rating Max 250 wattsSocket (Lampholder) Phenolic socketReflector (Mirror) Chemically etched aluminumMounting 3/8" Stand mount |
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Desk S.A.D. Lamp. $49.99 The mains operated desk lamp has a 72 high intensity LED light that is ideal for reading and working or as a casual background light source. This desk lamp is also used in the treatment of SAD (seasonal affective disorder). The full spectrum lighting provides a more natural light than conventional yellow tungsten bulbs or harsh fluorescent bulbs.1240 lux at 50cm.Size H19, W11, D4cm.Hand switch.No wiring required.LEDs (included).Manufacturer's 2 year guarantee.EAN/MPN/UPC/ISBN: 5019487082565. |
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Men's Tungsten Bracelet $179 Mens 9 Tungsten Bracelet |
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Men's 8.5' Tungsten Bracelet $99 Mens 85 Tungsten Bracelet |
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Tungsten Designer Edge Ring $49.95 Tungsten Designer Edge Ring. |
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8mm Designer Tungsten Band $69.95 8mm Designer Tungsten Band. |
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8mm Tungsten Band $99.95 8mm Tungsten Band . |
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Two-Tone Tungsten Bracelet $109.95 Two-Tone Tungsten Bracelet. |
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Apollo Overhead Projector Lamp - 600W Halogen Projector Lamp - 75 Hour Average $10.99 600 W 600 W Halogen Projector Lamp 75 Hour 75 Hour Average Tungsten halogen lamp with 120-volt output provides super bright light, long life and accurate color for overhead projectors. 2-pin projection lamp with ceramic base. ACCO Brands Corporation Apollo Overhead Projector Lamp Projector Lamp VA-DYS-6 www.acco.com |
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Tungsten Trioxide $113.11 High Quality Content by WIKIPEDIA articles High Quality Content by WIKIPEDIA articles Tungsten(VI) oxide, also known as tungsten trioxide or tungstic anhydride, WO3, is a chemical compound containing oxygen and the transition metal tungsten. It is obtained as an intermediate in the recovery of tungsten from its minerals. Tungsten ores are treated with alkalis to produce WO3. Further reaction with carbon or hydrogen gas reduces tungsten trioxide to the pure metal.Tungsten(VI) oxide occurs naturally in form of hydrates, which include minerals: tungstite WO3H2O, meymacite WO32H2O and hydrotungstite (of same composition as meymacite, however sometimes written as H2WO4). These minerals are rare to very rare secondary tungsten minerals. Author: Surhone, Lambert M./ Timpledon, Miriam T./ Marseken, Susan F. Binding Type: Paperback Number of Pages: 184 Publication Date: 2010/07/30 Language: English Dimensions: 6.00 x 9.00 x 0.42 inches |
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Tungsten - 03 - Old bulb
Why is tungsten used almost exclusively for filament of electric lamps?
and-
Why are copper and aluminium wires usually used for electricity transmission?
Tungsten:
Because it's cheap and has proven to be the best cost vs. performance.
The same goes for the wires. Silver and gold are better conductors, but the cost is too high.
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