http://www.outdoorlanternsonsale.com/ultrafire-flashlight/
Difference between lux and lumens?
Hello everyone. I wanted to buy a flashlight. I am a little confused but. So far, all lights flash I took a look at the extent of their brightness in lumens, like this example: http://www.dealextreme.com/p/ultrafire-u4-mcu-cree-q5 -WC-3-fashion-230-Lumen -Versatile-led-flashlight-CR123A 18650-18500 17401-aaa-And the other flashlight I found a different measure. I do not understand. The http://www.dealtoworld.com/reviews-12479-50767-Bright+flushlight.html output is 85 lumens ...? This light flash is much better than the first, so I'm a little confused. Could someone please explain to me how this kind of thing? Also, if you have any idea how the flash light lumen second possibility could be, please let me know. Thank you all.
Light Lux Wikipedia cons The difference between the lux and the light is that the lux takes into account the area over which the luminous flux is spread. A flux of 1000 lumens, concentrated into an area of one square meter, lights up that square meter with an illuminance of 1000 lux. However, even the 1,000 lumens, spread out over ten square meters, produces a dimmer illuminance of only 100 lux. Achieving a illuminance of 500 lux might be possible in a home kitchen with a single fluorescent lamp with an output of 12,000 lumens. To light a factory with dozens of times the size of the kitchen would require dozens of such fixtures. Thus, lighting a larger area at the same level of lux requires a greater number of lumens
 |
 New UltraFire 1000LM CREE LED XM L T6 LED Flashlight Electric To $11.35 Time Remaining: 34m |
 UltraFire 1000LM CREE LED XM L T6 LED Flashlight Electric Torch $12.85 Time Remaining: 36m |
 1300 LM UltraFire C8 CREE XM L XML T6 5 Modes LED Flashlight +18650 Battery $27.25 Time Remaining: 37m |
 UltraFire C8 1300 LM CREE XM L XML T6 5 Mode LED Flashlight +18650 +Charger $27.20 Time Remaining: 39m |
 UltraFire BJ08A CREE Q5 LED Flashlight 1 Mode 200lm Lumen AA 14500 Free Shipping $16.99 Time Remaining: 44m Buy It Now for only: $16.99 |
 1000LM UltraFire CREE XML XM L T6 5 Mode LED Flashlight Torch SET 16 $16.77 Time Remaining: 45m |
 UltraFire 1000LM CREE XML XM L T6 5 Mode LED Flashlight Torch 2 X 18650 16 $14.45 (1 Bid) Time Remaining: 49m |
 UltraFire WF 501B CREE XML XM L T6 LED 1000lm Lumen 5 Mode Flashlight Torch $16.77 Time Remaining: 55m |
 UltraFire C8 CREE Q5 300 Lumen 5 Mode LED Flashlight 18650 Charger $16.35 Time Remaining: 55m |
 UltraFire 501B 1000Lm CREE XM L T6 LED Flashlight Torch $9.99 Time Remaining: 1h 6m |
 UltraFire WF 501B 1000 Lumens CREE XM L T6 LED Flashlight Torch $9.99 (1 Bid) Time Remaining: 1h 31m |
 UltraFire CR2 15270 600 mAh 3V Rechargeable Battery x 6 $14.20 Time Remaining: 2h 33m Buy It Now for only: $14.20 |
 UltraFire 1000 Lumens CREE XM L T6 502B LED Flashlight Torch $9.99 Time Remaining: 2h 35m |
 UltraFire CR123A 880 mAh 36V Recharge Protect Bat x 6 $18.20 Time Remaining: 2h 37m Buy It Now for only: $18.20 |
 UltraFire 37V 2400mAh 18650 Rechargeable Battery x 2 $11.50 Time Remaining: 2h 41m Buy It Now for only: $11.50 |
 UltraFire 2600 mAh 18650 Recharge Battery x 2 + Case $14.00 Time Remaining: 2h 45m Buy It Now for only: $14.00 |
 UltraFire 3000 mAh 18650 Recharge Battery x 2 + Case $18.00 Time Remaining: 2h 49m Buy It Now for only: $18.00 |
 UltraFire 37V 2400mAh 18650 Recharge Protect Battery $12.00 Time Remaining: 2h 52m Buy It Now for only: $12.00 |
 UltraFire 36V 900mAh 14500 Rechargeable Battery x 2 $9.00 Time Remaining: 2h 54m Buy It Now for only: $9.00 |
 UltraFire 2600 mAh 18650 Recharge pro Batt x 2 + Case $15.00 Time Remaining: 2h 56m Buy It Now for only: $15.00 |
 UltraFire 501B 18650 Tactical CREE R5 LED 1M Flashlight Torch Mount Charger Set $35.99 Time Remaining: 3h 34m Buy It Now for only: $39.99 |
 1pcs New UltraFire Remote Pressure Switch For 501B Tactical Flashlight Torch $6.29 Time Remaining: 3h 43m Buy It Now for only: $6.99 |
 UltraFire 501B 1000Lm CREE XM L T6 LED Flashlight Torch $9.99 Time Remaining: 4h 2m |
 Ultrafire WF 501B G60 UV 3w Ultraviolet LED Flashlight Torch $17.99 Time Remaining: 4h 4m |
 UltraFire 501 CREE XM L T6 LED Flashlight Torch 1000 Lm $9.99 Time Remaining: 4h 27m |
 UltraFire 501 501B 1000 Lumens CREE XML XM L T6 LED Flashlight Torch $9.55 (9 Bids) Time Remaining: 4h 29m |
 TACTICAL ULTRAFIRE CREE LED FLASHLIGT TORCH BATTERYCHARGER 380 LM 3 MODES $9.99 Time Remaining: 4h 30m |
 UltraFire C8 CREE XM L XML T6 LED 1000 Lumen Flashlight Torch 5 Mode 18650 $15.65 Time Remaining: 4h 31m |
 UltraFire 1300 Lumens CREE XM L T6 C8 5 mode LED Torch Flash + 2x18650+Charger $20.50 (8 Bids) Time Remaining: 4h 31m |
 UltraFire WF 501B Cree P4 LED 1 mode Flashlight torch with holster $16.00 Time Remaining: 4h 32m Buy It Now for only: $16.00 |
 New UltraFire CREE XM L XML T6 LED 1000 Lumen Flashlight Torch 5 $19.65 Time Remaining: 4h 33m |
 UltraFire CREE XM L XML T6 LED 1000 Lumen Flashlight Torch 5 Mode 18650 Charger $20.86 Time Remaining: 4h 37m |
 Ultrafire C8 Cree Q5 LED Flashlight Torch Lamp Tactical Light + Battery +Charger $21.50 Time Remaining: 5h 1m Buy It Now for only: $21.50 |
 500 Lumen the Mode CREE Q5 LED Flashlight Torch + Universal carry the charger $30.80 Time Remaining: 5h 2m Buy It Now for only: $58.90 |
 New Ultrafire 502B CREE XM L T6 5 Mode 1000LM LED Flashlight Torch $8.50 (6 Bids) Time Remaining: 5h 10m |
 UltraFire 501B 3W CREE Green light LED 1Mode 150L Flashlight Torch + Holster Set $19.55 Time Remaining: 5h 15m |
 UltraFire 501B CREE Red Light LED 1Mode 150Lumen Flashlight Torch + Holster Set $19.55 Time Remaining: 5h 21m |
 UltraFire 1300 Lumens CREE XM L T6 C8 5 mode LED Torch Flash + 2x18650 + Charger $17.99 Time Remaining: 5h 34m |
 UltraFire 502 CREE XM L T6 LED Flashlight Torch 1000 Lm $9.99 Time Remaining: 5h 38m |
 Ultrafire C8 Cree Q5 LED Flashlight Torch Lamp 5 Mode lamp Tactical Light 300lm $14.95 Time Remaining: 5h 45m Buy It Now for only: $14.95 |
 UltraFire C8 1300 Lumens CREE XM L T6 Led Flashlight Torch 5 mode + Holdster $10.50 (10 Bids) Time Remaining: 6h 20m |
 Ultrafire WF 501C CREE XR E Q3 Max 270 Lumens LED Aluminium Flashlight Torch New $19.97 Time Remaining: 6h 27m Buy It Now for only: $19.97 |
 UltraFire 1000Lm Cree XM L T6 LED 5 Mode Flashlight Tactical Torch 501B $9.99 Time Remaining: 6h 28m |
 UltraFire Q5 CREE LED 5 Modes 345LM Bright Light Torch Flashlight use 1x 18650 $9.98 Time Remaining: 6h 33m |
 UltraFire C8 CREE XM L XML T6 1300LM Flashlight+2x 18650 3800mAh battery+Charger $25.79 Time Remaining: 6h 34m |
 UltraFire Q5 CREE LED 5 Modes 345LM Flashlight+ 2x 18650 5000mAh Battery+Charger $18.92 Time Remaining: 6h 34m |
 Zoom Focus Lens CREE XML T6 1000 Lumens LED Flashlight 2x Rechargeable Batteries $32.99 Time Remaining: 6h 35m Buy It Now for only: $32.99 |
 UltraFire 1300 Lumens CREE XM L T6 C8 5 mode LED Torch Flash + 2x18650+Charger $17.59 Time Remaining: 6h 39m |
 UltraFire C8 CREE XM L XML T6 1300LM Flashlight+2x 18650 3800mAh battery+Charger $25.79 Time Remaining: 6h 41m |
 1300 Lumens UltraFire CREE XM L T6 C8 5 mode LED Torch Flashlight $7.88 Time Remaining: 6h 43m |
 UltraFire Q5 CREE LED 5 Modes 345LM Bright Light Torch Flashlight use 1x 18650 $9.98 Time Remaining: 6h 43m |
 UltraFire Q5 CREE LED 5 Modes 345LM Flashlight+ 2x 18650 5000mAh Battery+Charger $18.92 Time Remaining: 6h 43m |
 UltraFire 1000 Lumens CREE XML T6 502B LED Flashlight Torch + 2x18650+Charger $13.79 Time Remaining: 6h 45m |
 UltraFire 02 CREE XM L T6 LED Flashlight Torch 1000L+CH $14.79 Time Remaining: 6h 47m |
 UltraFire LED Flashlight Torch CREE XM L T6 1000 Lumens $7.99 Time Remaining: 6h 48m |
 UltraFire LED Flashlight Torch CREE XM L T6 1000 Lumens $7.88 Time Remaining: 6h 48m |
 UltraFire 1000 Lumens CREE T6 WF 501B LED Flashlight Torch + 2x18650+charger $12.88 Time Remaining: 6h 49m |
 1000 Lumens UltraFire CREE XM L T6 502B LED Flashlight Torch $7.99 Time Remaining: 6h 49m |
 1000 Lumens UltraFire CREE XM L T6 502B LED Flashlight Torch $7.88 Time Remaining: 6h 49m |
 UltraFire LED Flashlight Torch CREE XM L T6 1000 Lumens $7.49 Time Remaining: 6h 50m |
 UltraFire LED Flashlight Torch CREE XM L T6 1000 Lumens $7.88 Time Remaining: 6h 50m |
 UltraFire 1000 Lumens CREE T6 WF 501B LED Flashlight Torch + 2x18650+charger $9.99 Time Remaining: 6h 51m |
 UltraFire WF 502B 74v Xenon Flashlight + extra bulb $9.50 Time Remaining: 6h 51m Buy It Now for only: $9.50 |
 UltraFire 1000 Lumens CREE T6 WF 501B LED Flashlight Torch + 2x18650+charger $19.57 Time Remaining: 6h 51m |
 UltraFire Q5 CREE LED 5 Modes 345LM Bright Light Torch Flashlight use 1x 18650 $9.98 Time Remaining: 6h 52m |
 UltraFire 1000 Lumens CREE XML T6 502B LED Flashlight Torch + 2x18650+Charger $9.99 Time Remaining: 6h 52m |
 UltraFire C8 CREE XM L XML T6 1300LM Flashlight+2x 18650 3800mAh battery+Charger $25.79 Time Remaining: 6h 54m |
 UltraFire Q5 CREE LED 5 Modes 345LM Flashlight+ 2x 18650 5000mAh Battery+Charger $18.92 Time Remaining: 6h 54m |
 UltraFire C8 CREE XM L XML T6 1300LM Flashlight+2x 18650 3800mAh battery+Charger $25.79 Time Remaining: 7h 5m |
 UltraFire Q5 CREE LED 5 Modes 345LM Flashlight+ 2x 18650 5000mAh Battery+Charger $18.92 Time Remaining: 7h 7m |
 UltraFire Q5 CREE LED 5 Modes 345LM Bright Light Torch Flashlight use 1x 18650 $9.98 Time Remaining: 7h 7m |
 UltraFire F 502B 3W 395nm BlackLight UV LED Flashlight $17.49 Time Remaining: 7h 14m Buy It Now for only: $17.49 |
 UltraFire Q5 CREE LED 5 Modes 345LM Flashlight+ 2x 18650 5000mAh Battery+Charger $18.92 Time Remaining: 7h 16m |
 UltraFire Q5 CREE LED 5 Modes 345LM Bright Light Torch Flashlight use 1x 18650 $9.98 Time Remaining: 7h 18m |
 UltraFire C8 CREE XM L XML T6 1300LM Flashlight+2x 18650 3800mAh battery+Charger $25.79 Time Remaining: 7h 18m |
 UltraFire Remote Pressure Switch For 6P Cree XM L T6 1000Lm 501B 501A flashlight $4.09 (5 Bids) Time Remaining: 7h 26m |