What is lumen output?
2076906
It doesn't matter the lumen output it's a waste of money. They have no used, you just can't see nothing.
2076907
I don't know but not bright enough for a headlight. They look intense but they don't shine very far. This is a better light http://stores.advmonster.com/h4-led-headlight-rev2/
2076908
Couldn't tell you, as soon as I turned them on they burned up, they literally started smoking.
2076909
I doubt the lumen output is anymore than 50. These bulbs were a complete waste of money and are not powerful enough for driving at dusk let alone at night.
2076910
I have to change these bulbs within to days. You cannot see the road properly. All my friends have the same complain and had to replace theirs as well.
1877697
I don't recall seeing the lumen output, but I didn't inspect the tags too closely when it arrived. It has to be pretty decent though with LED lights...
1246981
I'm not sure on the lumens, but it has 10 LED lights. It works terrific on my sewing machine (I attached it with Velcro) and the lights don't dim at all because it is electric. It works great for what I need it to do.
1496495
I'm not sure about the lumens, but I can tell you that it has four different light settings, each progressively brighter. I'm very happy with this product. It has a small footprint, but the light head can swivel to project light away from your face. I also like the USB port, which allows me to charge my iPhone on my desk. Very happy with the quality of this product.
1435230
I too would like to know the light output in Lumens. I have seen other "Replacement for 500W shop/floodlights" that only draw 7.5 Watts, (1/6 as much power to run them as this one), and they claim the output is 1820 Lumens. I suspect that is less light than what this unit puts out, but for the sake of comparison, please publish the light output in the light bulb industry-standard unit of measure, (Lumens). Thank you.
2031990
I am not sure. However, the light appears to put out that much light. It is very bright. So far, the output seems to be appropriate for the claimed amount. My reason is that it compares favorably with a hand held flashlight that puts out 300 lumens. I have several with various outputs. This light is very effective for camping and for emergency lighting.
1854351
Sorry, don't have a means to measure the lumens. I've verified that it works but purchased it to use in a new house that isn't yet finished.
149656
Do not know about lumens but the lamp is very good and looks nice. I bought 4 last year...very good.
291767
I'm not sure about the lumen output rating, but our backyard is over 200 feet deep and 80 feet wide and this light fixture is brighter than any other light we've had!!
766666
Yes Lumens are a measure of brightness. This link answers a lot of questions http://www.projectorcentral.com/projector_faq.cfm
811229
I just assumed that the 20W was actual power consumption for the LED matrix. You seem to think the 20W is some kind of equivalent light output wattage in incandescent terms.Lumens is light output. If you have the 1600 lumens, you have the light output. 20 watts in, 1600 lumens out. What more do you need?
584943
I think the output is about 16,000 lumens -- see ultrasunlamps com --> http://www.ultrasunlamps.com/1798
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
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.
607663
Not sure of Lumens, but when fully charged it is very bright. Lasts at least 12 hours but starts to dim
1741029
I don't know the output in lumens, but for my model the color is daylight or cool white, not warm white like and incandescent. Possibly you can specify a color temperature?
373721
If I remember correctly, its 2900 Lumen output. They are extremely bright and very impressive. This is a very nice kit. Hope this helps.