Is Each light 1550 Lumens or all 4 lights combined = 1550 Lumens?
1277847
each light is 27 watts or 1550 lumen, they are not spot lights but rather wide beam work lights
1277848
While I don't have a light meter which could reliably measure this, I am about 98% certain that they are individually rated. I have 8 of them on my Cherokee, and they are just flat awesome. I have only had them on for a few months, but so far they have been great. Time will tell how they hold up, but for the $$, they can't be beat. The only odd thing about them, is the boxes they come in have check boxes for 15W, 27W, and I think 35W, and 50W. But, the only ones I see listed on Amazon are the 27Watt. If the 50s are avail somewhere, they would be devastating.
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?
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.
282691
4 lights. It works great. My understanding is that these do not require replacement
2130868
Assuming each LED is being driven by ~20mA then its approximately 13 Watts.
952332
i think it has 250 lumens but not 100% sure. i think thats what i read anyway.
194578
Not sure of the reason for the variance. From what I understand, if you use rechargable lithium batteries, you'll achieve maximum lumen output.
2182174
According to the instructions a total of 4 light units maximum can be interconnected (each unit 12" long) -- so I don't know why they sell it in a package with only 3 lights.
1956891
The number of LEDs is unimportant. The output as measured in lumens is what is important. That information is not provided for this product. LEDs are not all the same, even those that output light in the same narrow spectrum; design and thermal specs matter, input voltage and current matter. 9 LEDs of one design could easily outperform more LEDs of another. If you want answers, demand to know the output as measured by an industry standard like lumens or candlepower.BTW, I attempted to ask that question specifically here, and that question hasn't appeared. Draw your own conclusions why that might be. The number of LEDs is unimportant. The output as measured in lumens is what is important. That information is not provided for this product. LEDs are not all the same, even those that output light in the same narrow spectrum; design and thermal specs matter, input voltage and current matter. 9 LEDs of one design could easily outperform more LEDs of another. If you want answers, demand to know the output as measured by an industry standard like lumens or candlepower.BTW, I attempted to ask that question specifically here, and that question hasn't appeared. Draw your own... » Read More The number of LEDs is unimportant. The output as measured in lumens is what is important. That information is not provided for this product. LEDs are not all the same, even those that output light in the same narrow spectrum; design and thermal specs matter, input voltage and current matter. 9 LEDs of one design could easily outperform more LEDs of another. If you want answers, demand to know the output as measured by an industry standard like lumens or candlepower.BTW, I attempted to ask that question specifically here, and that question hasn't appeared. Draw your own conclusions why that might be. « Show Less
2176153
I was wondering the same thing and still am not 100% sure. But, from what I have read, each 5050 SMD produces 12-15 lumen per chip. This type of strip has 300 chips per 16.4 feet. Check my math, but this comes out to about 219 to 225 lumens per foot of strip. Its hard to find good info on LED strips. No one at Home Depot or Lowes seems very knowledgable. Here is the link where I got my info ... http://www.ledlightsworld.com/led-strips-flexible-led-strips-c-1_49.html
608145
Incandescent bulbs produce about 16 lumens per watt, so you want 3x60x16 = 2880 lumens. This reel (looks as if they changed the description since you asked this) produces 40% of that, 1180 lumens, or about as much as one 75 watt incandescent.The HitLights high density reel produces 2x light, costs 2.8x.
1735028
It appears to me that the importer is a bit remiss in dealing with the details. In addition to the discrepancy in brightness, he also lists two different wattage ratings. I suspect that he is now selling the 20-watt version of this light, vs. the older 18-watt version, and simply botched the ratings. (1650-lumens)/(18-watts) = 91.7-lumens/watt(1950-lumens)/(20-watts) = 97.5-lumens/wattBoth of these figures are VERY efficient, and replace fluorescent tubes VERY well.
1721425
Watt per lamp is 54W, each lamp gives off approximately 5000 lumens and is good for a 4 x 4 coverage
1342150
40 Watt bulbs in each of the 5 lamps. There is a warning label in each lamp stating "40 Watts" max. This puts out more than adequate light.
159325
And as a quick rebut to the answer that these lights are 155 watts and 13 amps, they are not. They are definitively 55 watt lights that pull 4.5 amps, 5 at MOST.
946431
Listed as 1570 lumens. However, if you are not using european code housings (sharp horizontal cutoff and deep/wide spread), or hazed lenses, the output won't matter (and may accelerate the yellowing of plastic lenses).
1041557
From Planet Bike website, this is 21 lumens. http://ecom1.planetbike.com/3029.html