What is actual output of this bulb in lumens?
909411
It feels like regular 25 watt bulb. I put two of these bulbs in the bathroom and it is bright enough.
1029870
I really don't know the lumens amount but they are equal to a normal 7 watt bulb but a softer white color. They are really worth it since they don't generate heat, are less costly to run and don't seem to come out of the socket as much as the other bulbs. I am really happy with them.
1274143
Exactly how many lumens, I do not know. I would guess that it is about as bright as a 40 watt light bulb. The beam is quite focused, though, so it is great for illuminating a tabletop or other surface without illuminating the whole room. I used mine to light the dinette table in my camper and it hardly lights up the beds in the camper at all. The lighting is definitely on the cool side.
153528
About 650 lumens. When compared to my 11 watt bulbs that I replaced, they appear to be slightly brighter but that may because it's whiter side rather than soft white.
213730
the wattage that the bulb is listed at is the wattage drain your electrical system will feel, just like a house lightbulb, Wattage is not a true measure of light output it is a measure of power used. Lumens are a listing of light output. this is a 60/55 watt bulb that is the wattage it will draw
291803
It has 11 lumens of output, and this is a great flashlight. It is used often by mechanics and it takes a beating. I have had mine for 8 years and it still works great.
966590
This is an 85W florescent energy, I assume it will be the equivalent to 200W-300W incandescent. I have no idea how many lumens it generates, but this bulbs are very big and bright.
293009
The info. I got was 500. I have no way of testing it. At 500 or 600 its still super bright. I saw a test where it beat a 800 lumen light.
584944
It may say it puts out 16,000 lumens but the determining factors of how much your plants receive depends how close the light is them... Initial output is 16,000 from the bulb. I do recomend replaceing every 9 months because like all lights these lose thier briteness
1881232
The Luminous Intensity for this kind of light is around 90-100Lm/W. Then you can calculate the output lumens as the wattage you need.
1580716
I contacted the seller and they said "the bulbs produce approximately 3840 - 4000 Lumens. Note that in comparison, the LED bulb directs light downward over a 180° area, whereas a fluorescent bulb directs light out over 360°, including towards the ceiling, so the light output between the two is similar."
421208
both comments below are wrong, the lumens would be 95,000. given the info from the ushio website you can do the math {95,000(lux)x0.0122(hps[source])=1,159(par)}. the website says 1,150 par so you can do the math backwards to figure out the lumens. this can be done for mh bulbs too by substituting the source to (0.0141). regardless this is a badass bulb that pumps out 7,000 more lumens than the standard hps bulb! hope this helps!
1104529
I can't recall specific output, but can remember that it is equivalent to 40-50 watt incandescent bulb.
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?
1893136
The lumen output goes up very slightly as voltage rises due to the regulation not being perfect, but the difference is so small that most peoples' eyes could not discern the difference. Lumen output is roughly 1200 to 1500 lumens, it is hard to compare since the beam is so floody but this is what the component datasheet suggests at the measured drive current.
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.
2147913
I don't have the email reply I received from the manufacturer when I asked the lumen output question. I believe it is 250 but it is very satisfactory never the less.