Watt Second
Watt Second
 |
 Photo Studio 24" Photography Light Tent Backdrop Kit 60cm Cube Lighting In A Box $49.90 End Date: Saturday Jun-9-2012 19:08:18 PDT Buy It Now for only: $49.90 |
 Broncolor Primo 2 Flash Head for all Bron Pulso Packs 1600WS max VERY CLEAN $535.00 (5 Bids) End Date: Saturday May-19-2012 20:47:52 PDT |
 SteamFast SF-407 1500-Watt Fabric Steamer $9.99 End Date: Saturday May-19-2012 18:48:04 PDT |
 300W Monolight Strobe Flash STUDIO PHOTOGRAPHY LIGHT $60.96 End Date: Tuesday May-29-2012 0:26:07 PDT Buy It Now for only: $60.96 |
 Dynalite m1000x Power pack $177.50 (16 Bids) End Date: Saturday May-19-2012 22:00:51 PDT |
 900W STROBE STUDIO FLASH LIGHT KIT LIGHTING SET 3x 300W $329.30 End Date: Tuesday May-29-2012 0:26:09 PDT Buy It Now for only: $329.30 |
 32" Studio Tent Light Backdrop Kit Photography Lighting 80cm Soft Cube In A Box $69.95 (1 Bid) End Date: Saturday May-19-2012 18:17:17 PDT |
 Laser Pointer Activated Relay Kit (#1735) $11.99 End Date: Saturday May-19-2012 18:43:04 PDT Buy It Now for only: $14.99 |
 Flashpoint II FP620M, 300 Watt AC/DC Monolight Strobe $189.95 End Date: Monday Jun-18-2012 4:50:09 PDT Buy It Now for only: $189.95 |
 Paul C Buff Einstein E640 Flash Unit $475.00 (19 Bids) End Date: Sunday May-20-2012 14:09:50 PDT |
 Black White Studio 33" Umbrella Photo Muslin Backdrop Photography Screen 400 Kit $124.52 End Date: Monday May-21-2012 19:32:14 PDT Buy It Now for only: $124.52 |
 SP6500 Complete Portrait & Product Studio Kit Strobes & Softboxes Square Perfect $366.90 End Date: Saturday May-19-2012 19:54:26 PDT Buy It Now for only: $403.95 |
 Elinchrom 1200-RX 1200 Watt Second Monolight Flash Unit Lamp Studio Light Strobe $202.50 (10 Bids) End Date: Sunday May-20-2012 9:56:35 PDT |
 Chromakey Green Screen Lighting Kit 2000 Watt 10'x12' Backdrop Background Stand $189.99 End Date: Thursday Jun-14-2012 11:50:23 PDT Buy It Now for only: $189.99 |
 ELINCHROM 20493/10 RANGER RX 1500 W/S RINGFLASH - ELINCHROM RING FLASH - CLEAN! $201.50 (7 Bids) End Date: Monday May-21-2012 13:46:12 PDT |
 1600w Photo Studio Video Continuous Lighting Kit Photography Softbox Light Stand $109.90 End Date: Saturday Jun-9-2012 20:00:51 PDT Buy It Now for only: $109.90 |
 AlienBees B800 Studio Flash Mint $232.50 (8 Bids) End Date: Sunday May-20-2012 12:26:30 PDT |
 Sony HVL RLAM Ring Light/Macro Flash(OFFICIAL SONY PRODUCT) $251.38 (7 Bids) End Date: Sunday May-20-2012 2:10:26 PDT |
 Square Perfect SP3500 Complete Portrait Studio Kit w/Flashes-Softboxes & More! $281.97 End Date: Thursday May-31-2012 16:54:19 PDT Buy It Now for only: $281.97 |
 Broncolor Pulso 1600ws Flashtube for Pico and Mobilite flash lamphead NEW $100.00 End Date: Tuesday May-22-2012 14:10:14 PDT Buy It Now for only: $225.00 |
 Photo Studio Video Light Lighting 10x20 Green Screen Background Stands Case Kits $216.00 End Date: Sunday Jun-17-2012 16:25:32 PDT Buy It Now for only: $216.00 |
 Broncolor Picolite Flash Head for all Bron Pulso 1600WS max used w fresh tubes $410.00 (4 Bids) End Date: Tuesday May-22-2012 14:36:05 PDT |
 Dyna-Lite M500 Xl powerpack Dynalite strobe pack $202.50 (4 Bids) End Date: Sunday May-20-2012 17:12:24 PDT |
 Square Perfect Studio Flash/Strobe-Includes Softboxes - Backdrop - Muslin - Boom $599.97 End Date: Wednesday May-30-2012 17:14:19 PDT Buy It Now for only: $599.97 |
 Quantum Qpaq-X 400 watt second System ++ Extra Battery NO RESERVE $350.00 (2 Bids) End Date: Monday May-21-2012 22:10:35 PDT |
 660W Strobe Studio Flash Light Kit Lighting Photography $247.90 End Date: Thursday Jun-7-2012 1:19:47 PDT Buy It Now for only: $247.90 |
 300W/S PROFESSIONAL STROBE FLASH LIGHT. BRAND NEW! $109.00 End Date: Tuesday May-22-2012 21:31:51 PDT Buy It Now for only: $129.00 |
 Interfit Stellar X 300 Flash Two Monolight Twin Softbox Kit (120VAC) $202.50 (3 Bids) End Date: Sunday May-20-2012 21:58:27 PDT |
 800W 3pc 10x20ft Muslins Photography Video Support Background Stand Light Kit $166.18 End Date: Saturday Jun-16-2012 11:58:22 PDT Buy It Now for only: $166.18 |
 Alien Bees ABR800 ABR 800 Shoot Through Ring Flash Ring Light $355.00 (11 Bids) End Date: Monday May-21-2012 20:06:08 PDT |
 Green Studio Umbrella Photo Backdrop Screen 420w $96.32 End Date: Monday Jun-18-2012 11:53:00 PDT Buy It Now for only: $96.32 |
 Photogenic Flashmaster AA Power Pack 400ws and Head $79.99 End Date: Saturday May-19-2012 19:01:06 PDT |
 Broncolor Pulso F4 Focusing Flash Head for all Bron Packs 3200WS max Fast POP! $704.00 (6 Bids) End Date: Wednesday May-23-2012 20:42:56 PDT |
 2X 1000 WATT 1K light Dimmer for FILM or PHOTOGRAPHY $47.99 End Date: Friday May-25-2012 19:17:43 PDT Buy It Now for only: $47.99 |
 Elinchrom 1200-RX 1200 Watt Second Monolight Flash Unit Lamp Studio Light Strobe $31.00 (6 Bids) End Date: Tuesday May-22-2012 9:59:26 PDT |
 4800 WATT/ SECOND FLASH TUBE FOR SPEEDATRON OR NORMAN OR ? $229.00 End Date: Thursday May-24-2012 12:47:12 PDT Buy It Now for only: $229.00 |
 AlienBees B800 Flash "Yellow" with 11-inch Long Reflector & Carrying Bag $215.02 (6 Bids) End Date: Monday May-21-2012 17:38:44 PDT |
 GRALAB Electric Darkroom Photo Timer Model 300/ No Reserve $11.50 (4 Bids) End Date: Sunday May-20-2012 13:49:48 PDT |
 1X 1000 WATT film light Dimmer for Fresnel Arri Lowell Mole Practicals NEW! $27.99 End Date: Thursday May-24-2012 17:11:38 PDT Buy It Now for only: $27.99 |
 INTERFIT INT454 Stellar XD 300 Watt/Second Flash Kit! $140.00 End Date: Sunday May-20-2012 7:01:44 PDT |
 750W STROBE STUDIO FLASH LIGHT KIT LIGHTING SET 3x 250W $289.95 End Date: Tuesday May-22-2012 19:55:12 PDT Buy It Now for only: $289.95 |
 Broncolor Primo A Fashion Pack $400.00 (1 Bid) End Date: Tuesday May-22-2012 20:00:22 PDT |
 LUMEDYNE P4LX SIGNATURE X-FAST POWER PACK 400 WATT SECONDS $270.00 (8 Bids) End Date: Tuesday May-22-2012 18:45:32 PDT |
 Black Green White Studio 33" Umbrella Photo Muslin Backdrop Screen 400 Kit $137.93 End Date: Monday May-21-2012 19:31:12 PDT Buy It Now for only: $137.93 |
 Photogenic PLR2500DR strobe pocket wizard + plirc2 transmitter and receiver! $500.00 End Date: Monday May-21-2012 12:04:18 PDT Buy It Now for only: $750.00 |
 Video Photography Studio lighting 2 Muslins BW Background System Light Kit $149.00 End Date: Saturday Jun-9-2012 14:47:46 PDT Buy It Now for only: $149.00 |
 Speedotron Lighting System $999.00 End Date: Monday May-21-2012 4:23:18 PDT |
 Broncolor Pulso 3200ws Flashtube for Pulso4 flash head NEW in original packaging $399.00 (1 Bid) End Date: Thursday May-24-2012 14:01:27 PDT |
 32" Photo Studio Reflect Umbrella Flash Lighting Kit Photography Light Stand Set $69.90 End Date: Sunday May-27-2012 21:24:50 PDT Buy It Now for only: $69.90 |
 Broncolor Pulso 1600ws Flashtube for Pico and Mobilite flash lamphead NEW $100.00 End Date: Thursday May-24-2012 14:09:41 PDT Buy It Now for only: $225.00 |
 750W STROBE STUDIO FLASH LIGHT KIT LIGHTING PHOTOGRAPHY $289.95 End Date: Tuesday May-22-2012 7:42:02 PDT Buy It Now for only: $289.95 |
 NORMAN P1250D POWER SUPPLY with low voltage trigger $200.00 End Date: Saturday May-19-2012 19:45:32 PDT Buy It Now for only: $350.00 |
 600W LIGHTING FLASH STROBE STUDIO KIT PHOTOGRAPHY LIGHT $177.06 End Date: Tuesday May-29-2012 0:29:14 PDT Buy It Now for only: $177.06 |
 Speedotron Studio Lighting Flash Head w/ Model Light $58.00 (4 Bids) End Date: Wednesday May-23-2012 13:29:37 PDT |
 Paul C Buff White Lightning Ultra 1800 Studio Flash $162.50 (6 Bids) End Date: Sunday May-20-2012 18:59:52 PDT |
 JTL Versalight J-160, 160 Watt Second Monolight Strobe. #1104 $69.95 End Date: Saturday Jun-9-2012 5:45:22 PDT Buy It Now for only: $69.95 |
 Speedotron Studio Power Pack Bank 5600 watt seconds $300.00 End Date: Sunday May-20-2012 11:22:29 PDT Buy It Now for only: $500.00 |
 600W/S PROFESSIONAL STROBE FLASH LIGHT. GERMAN TUBE. $229.99 End Date: Friday Jun-8-2012 15:11:45 PDT Buy It Now for only: $229.99 |
 Speedotron Brown D202 Power Supply.... $99.00 End Date: Sunday May-20-2012 14:46:02 PDT |
 Photo Studio 24" Photography Light Tent Backdrop Kit 60cm Cube Lighting In A Box $46.09 (4 Bids) End Date: Sunday May-20-2012 19:49:12 PDT |
 1600W Strobe Studio Flash Light Kit Lighting Photography Fan Cooled Set $648.00 End Date: Friday Jun-15-2012 8:35:29 PDT Buy It Now for only: $648.00 |
 NO RESERVE Paul C Buff Einstein E640 Flash Unit w/transmitter & receiver $435.00 (14 Bids) End Date: Monday May-21-2012 13:32:40 PDT |
 Photogenic PG4001ML Studio-Max 150 Watt/Second Monolight - Set of 2 $285.00 End Date: Saturday Jun-16-2012 12:28:20 PDT Buy It Now for only: $285.00 |
 1400W Strobe Studio Flash Light Kit Lighting Photography Fan Cooled Set $540.00 End Date: Sunday May-20-2012 23:27:11 PDT |
 LUMEDYNE X4DL BOOSTER DELUXE 400 WATT-SECONDS $62.50 (5 Bids) End Date: Wednesday May-23-2012 19:03:19 PDT |
 32" Studio Tent Light Backdrop Kit Photography Lighting 80cm Soft Cube In A Box $69.90 End Date: Saturday Jun-2-2012 19:50:38 PDT Buy It Now for only: $69.90 |
 Speedotron 1205cx NR $350.00 End Date: Wednesday May-23-2012 13:07:17 PDT |
 CANON G5 PC1049 PowerShot DIGITAL CAMERA IN VERY GOOD COND-RECONDITIONED $155.00 End Date: Saturday Jun-2-2012 11:33:19 PDT Buy It Now for only: $155.00 |
 Broncolor Pulso 600ws Flashtube for Minipuls C40 C80 flash Monolights NEW $100.00 End Date: Thursday May-24-2012 14:17:35 PDT Buy It Now for only: $225.00 |
 Broncolor Impact 41 complete lighting kit $699.99 End Date: Sunday May-20-2012 18:30:06 PDT Buy It Now for only: $999.99 |
 Linco White Muslin Screen 9'x15' Photo Studio Background Photography 50991 $39.99 End Date: Thursday May-31-2012 20:01:06 PDT Buy It Now for only: $39.99 |
 Set of 2 Photogenic PowerLight 2500 DR Studio Lights with Padded Case $800.00 End Date: Sunday May-20-2012 12:56:05 PDT |
 800W 10x20 Green Chromakey Backdrop Screen Studio Kit $135.99 End Date: Monday Jun-18-2012 11:37:12 PDT Buy It Now for only: $135.99 |
 Elinchrom 1200-S 1200 Watt Second Monolight Flash Unit Lamp Studio Light Strobe $20.50 (2 Bids) End Date: Wednesday May-23-2012 17:54:13 PDT |
 Dyna-Lite M500XL flash power pack for strobes $300.00 (1 Bid) End Date: Monday May-21-2012 9:54:43 PDT |
 Interfit Photographic EXD200, 200 watt Second Digital Monolight Flash. #INT118 $174.69 End Date: Sunday May-20-2012 17:35:13 PDT Buy It Now for only: $174.69 |
 Elinchrom Ranger RX-AS Kit with "S" Head - EL 10282 $1,799.00 End Date: Wednesday May-23-2012 15:30:18 PDT |
 30" PHOTO STUDIO LIGHT BOX KIT FOR PRODUCT PHOTOGRAPHY WITH LIGHTS $74.95 End Date: Thursday May-24-2012 17:26:18 PDT Buy It Now for only: $74.95 |
 ALIEN BEES B1600 640WS (YELLOW) FLASH UNIT $350.00 (14 Bids) End Date: Sunday May-20-2012 10:37:39 PDT |
 Profoto Acute2 1200ws Power Supply - rarely used - free shipping $750.00 End Date: Thursday May-24-2012 15:56:03 PDT Buy It Now for only: $1,000.00 |
 Speedotron 4803CX - 4800 Watt/Second Power Supply (120V) $999.00 End Date: Sunday Jun-17-2012 11:36:13 PDT Buy It Now for only: $999.00 |
 Black Alien Bees B400 Strobe/Monolight $149.00 End Date: Thursday May-24-2012 13:51:30 PDT Buy It Now for only: $184.99 |
 Chromakey Green/Black Screen Muslin With Metal Backdrop Support Stand 50551 $169.99 End Date: Thursday May-31-2012 23:37:01 PDT Buy It Now for only: $169.99 |
 400W/S PROFESSIONAL STROBE FLASH LIGHT. BRAND NEW! $129.00 End Date: Sunday May-20-2012 18:58:25 PDT Buy It Now for only: $145.99 |
 Hensel Porty 1200 Watt/Second Battery Operated Power Pack with Battery $100.00 (1 Bid) End Date: Thursday May-24-2012 12:43:34 PDT |
 Photography Studio Video Lighting Kit 3 Chromakey Muslins Background Stands Case $174.00 End Date: Thursday Jun-14-2012 10:41:35 PDT Buy It Now for only: $174.00 |
 900W Studio Studio Flash Strobe Lighting Kit Professional Set O6 $422.00 End Date: Sunday May-20-2012 18:36:50 PDT |
 Compact Light Stands Tripod Photo Studio Video Photography Linco New 50041 $29.99 End Date: Thursday May-31-2012 19:50:23 PDT Buy It Now for only: $29.99 |
 LUMEDYNE HEBC SIGNATURE HEAD w/REFLECTOR 3 CABLE 800 WS UV FLASHTUBE SWIVEL TILT $11.50 (2 Bids) End Date: Thursday May-24-2012 19:06:05 PDT |
 NEW 200WS COMPACT STUDIO FLASH WITH 75WS MODELING LIGHT $79.99 End Date: Sunday May-20-2012 0:00:19 PDT |
 Flashpoint II 320M, 150 Watt Second AC / DC Monolight Strobe. #FP320M $99.95 End Date: Friday Jun-15-2012 8:50:23 PDT Buy It Now for only: $99.95 |
 Lumedyne HEBC Signature Series 2400 Ws Flash Head for Portable Strobe $2.25 (3 Bids) End Date: Thursday May-24-2012 20:59:08 PDT |
 Crossbar For Background Support Stand Carrying Bag Kit Photo Studio 50301 $74.99 End Date: Thursday May-31-2012 20:44:02 PDT Buy It Now for only: $74.99 |
 2000w Photo Studio Video Continuous Lighting Kit Photography Softbox Light Stand $129.95 (1 Bid) End Date: Monday May-21-2012 10:56:21 PDT |
 NEW 200WS PHOTO STUDIO FLASH WITH 150WS MODELING LIGHT, TENT SOFTBOX PICTURE $139.99 End Date: Sunday May-20-2012 22:34:10 PDT |
 Profoto D1 Studio Kit 500/500 AIR w/o Remote $2,089.00 End Date: Friday May-25-2012 19:28:43 PDT Buy It Now for only: $2,089.00 |
 900W Studio Monolight Strobes Flash Lighting Kit + Case + Trigger B3 $390.00 End Date: Monday May-21-2012 0:00:45 PDT |
 Novatron 880 watts-Seconds power pack adj 440/880 w/all cords Nice & Great $189.95 End Date: Monday Jun-18-2012 8:50:55 PDT Buy It Now for only: $189.95 |
 STUDIO LIGHTING1200 WATT KIT FLUORESCENT Steve Kaeser Photographic Lighting $199.95 End Date: Sunday May-20-2012 8:45:08 PDT |
A 60-watt bulb is operating at an efficiency 0f 6.2%. What is the number of photons per second...?
number of photon given off by the bulb assuming the wavelength of light to be 580nm
energy /sec = 0.062 * 60 J/ s
Each photon = 2.138 * 1.602 * 10^-19 J
( E = 1.24 / 0.58 eV)
( 1eV = 1.602 * 10^-19 J)
So number of photons = 1.086 * 10^19
You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.
Comments are closed.