How many lux of illumination?
1645151
That's a manufacture's question; the unit does have a high and low setting; I found the high setting blinding.
1645152
Looks like R. Jensen answered your question. I can only add that I checked with my eye doctor to ensure it was safe for my eyes and he said no problem since it was in the blue green spectrum. It has worked wonders for my SAD issues! I just went to Costa Rica and was able to get over jet lag and adjusted to the new time zone very quickly.
1645153
There are two settings: 8000 and 12000 lux. Also, the light emitted is not white; it is blue-green.
1635957
The lamp measures about 8 fc (90 lux) on axis at 3 ft and falls to about 50% (4 fc) 30 degrees off axis so it is a fairly narrow central beam although not a spot light. It is a poorly defined beam pattern so there is still significant flux beyond 45 degrees off axis. Color temperature appears to be ~5500K (daylight) although I did not measure it. These are DLRs (Daylight Running Lights) and not intended to be used for driving illumination.
1790323
A given amount of light will illuminate a surface more dimly if it is spread over a larger area, so illuminance (lux) is inversely proportional to area when the luminous flux (lumens) is held constant. One lux is equal to one lumen per square metre: 1 lx = 1 lm/m2 = 1 cd.
521492
I can't speak of an exact amount but I can tell you it is less expensive as the sensor is outstanding with far less false ons thus the light is on considerably less than my last two from a box store.
1920027
I don't know how many lumens. But the light offers two levels of brightness: normal and high. I use it for keyboard music in my bedroom, only on normal setting. I can't imagine wanting a brighter light, as that might result in glare, or white-spotting on the sheet music page? This light is ideal for viewing a page of sheet music in low-lit, or completely dark room.
437611
My guess would be <= 100 lumens. They say 15-20w halogen equivalent with the materials. I could believe 15w halogen equivalent.
2250425
I can't really say but it's more lumens then I need and the lamp itself is just awesome. I've bought two more. It's not cheap but you get what you pay for and guaranteed you'll be glad you spent the money on this lamp. I'm using it right now. Differential lighting modes is great. And it looks just so fantastic.
2191557
They are actually 865 lumens. I like the 4000k bulbs, I am not a fan of the yellow look. The cool white also tend to give the room more of a daylight look I find.
255674
I don't know about lumens exactly, but I measured the output with a light meter and it registers about 15k to 20k lux (1 lux is equal to 1 lumen per square meter, I think). They say 20k lux is legit for growing plants. I ordered 4 different types of grow lights, and this actually has the highest output (including a 60 dollar T5 setup), it just doesn't cover a whole lot of area, although definitely covers more than the other under $20 LED lights. I may buy quite a few of these.
2146356
I don't know the lumens, but it is perfect for a makeup vanity mirror. Great lighting.
474317
Ralph, A picture is worth a thousand words... a thread or link sometimes even more: http://www.flashlightreviews.com/reviews/gerber_infinityultra.htm This link from CandlepowerForums contains a thorough review as well as comparative evaluation, including a discussion of throw in Lux versus output in Lumens via another forum link. The short answer is about 22 Lux at beam center, about 30 Lumens output. This is not a "blindingly" bright defense light, but a long-battery-life, strong, adequately bright light for night-time walks in city or trail.
1619322
It's a little over 100 lumens. Those who wrote 200 and 300, are only comparing output to generic lights that are fraudulently rated higher than their actual output.
1363733
The Technical Specs in the User Manual doesn't list it Lumens; it lists: Range [m /ft]: 100 / 328; Focusable: Yes; Light: Xenon
325939
I don't know exactly how much but it isn't very bright, I have them set up on columns at the front of my driveway. It is enough to mark each side but doesn't give off enough light to illuminate around or to the ground. Basically just enough to show where to turn in.
216865
Light Output:High brightness: 350 lumensMedium brightness: 95 lumensLow Brightness: 45 Lumens Runtime:High brightness: Up to 1.75 continuous hoursMedium brightness: Up to 3.50 continuous hoursLow brightness: Up to 6.75 continuous hoursStrobe: Up to 5.50 continuous hours
1359166
1100 LUX at the highest setting. For me this is very bright. I like using the 750 setting in my office at night.
1102718
SAD lights produce between 10,000 lux and 20,000 lux. A day in summer produces between 80,000 lux to 120,000 lux.It appears really bright, because the eye has a non-linear response. Everyone responds differently to light . Special instructions for the product seems silly , because a sunny day has eight to ten times the ambient light and everyone responds differently.