Can anyone who has purchased this item confirm that this is the 5500k only version? In other words all 600 LEDs are 5500k and not a variable 3200k to 5500k (300x 3200k LEDs and 300 5500k LEDs.) If you look at the front of the light when it is off you...
266841
John, This particular Light uses 5500k leds only. It has a gel holder built on the front, if you need to change to 3200k or match any flourescent flavor. It includes a couple hard plastic color filters but they are not accurate, they only get you close. The actual leds used are exactly daylight if you measure it on a Nikon d800 then analize the image in photoshop. Hope This helps, Mike
1528507
Correct, there were no LEDs on this one when I received it. I don't think they are using the same part number for a newer style but who knows you might get lucky.
362496
The title & description says "Daylight" & "Full Spectrum" in other words 5500K. A full spectrum is great for both grow & Bloom. Personally own the 6500k & 2700k with the official Hydro Farm Hood & I like it!
499769
Here is a link to the most extensive testing I've seen with these lights (although the link is discussing the 300 LED version, so you'll want to do your own calculations based on these numbers.) Basically the spec sheet states .24 watts per LED. Of course you'll have to take into account the voltage drop, and with 20M of them you'll definitely want to look into dual-feeding to keep consistent brightness/color value... but all of that is explained in the link below much better than I can do here. Hope that helps! http://electronics.stackexchange.com/questions/19413/why-doesnt-my-5050-led-strip-draw-as-much-power-as-i-expect
760151
Absolutely not ..... it is a much warmer 2700K. For my taste, it is one of the nicest LED lights I have seen and I tried out a lot of them (CREE, Sylvania, Halo, Phillips, etc).
1511512
Maker replied me - it's in 5,000K. It's Kelvin btw. Still no words on lumens though...
819152
These are a "Cool White" LED . These will range from 6000k to 7000k to which batch of LED's they received, but do not usually go past 6500k .
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the light is around 3500K and I did not saw 6500K as I was searching for also
1093324
Thanks y'all! I bought trial versions of the 60W-equiv. (soft white) and the 100W-equiv. ('daylight') -- and LOVE them! In fact, I'm thinking I won't be able to use four daylight 100W in my standing lamp -- that would make the (two-story, great room) living room look like a hospital operating theater!!(Oh, and John? Other descriptions say those (other?) bulbs use the "Cree LED Filament Tower Technology" to make the light be 'thrown around' like an incandescent, rather than focused like a spotlight. This 'ad' doesn't include that info -- so I didn't know if CREE used to make one without the 'circle of light.' Hence my question.) Thanks y'all! I bought trial versions of the 60W-equiv. (soft white) and the 100W-equiv. ('daylight') -- and LOVE them! In fact, I'm thinking I won't be able to use four daylight 100W in my standing lamp -- that would make the (two-story, great room) living room look like a hospital operating theater!!(Oh, and John? Other descriptions say those (other?) bulbs use the "Cree LED Filament Tower Technology" to make the light be 'thrown around' like an incandescent, rather than focused like a spotlight. This 'ad' doesn't include that info -- so I didn't know if CREE used to... » Read More Thanks y'all! I bought trial versions of the 60W-equiv. (soft white) and the 100W-equiv. ('daylight') -- and LOVE them! In fact, I'm thinking I won't be able to use four daylight 100W in my standing lamp -- that would make the (two-story, great room) living room look like a hospital operating theater!!(Oh, and John? Other descriptions say those (other?) bulbs use the "Cree LED Filament Tower Technology" to make the light be 'thrown around' like an incandescent, rather than focused like a spotlight. This 'ad' doesn't include that info -- so I didn't know if CREE used to make one without the 'circle of light.' Hence my question.) « Show Less
1499711
These LED's only have two leads. The longer Lead is the Anode +,and the shorter Lead is the cathode - . Use a 1/2 watt 1k resistor in series with a 12 volt supply. The LED flashes and changes color all on it's own with a built in microchip. It looks like a tiny black speck inside the LED. It has no effect on the brightness. I think these Led's are a great buy for the money. They did not come with 1 k resistors. I forgot what they came with. Important you use 1 (1k ) resistor per LED in series. Look up charts on LED's brightness,current draw , voltage and proper voltage drop resistor for you application. These LED's only have two leads. The longer Lead is the Anode +,and the shorter Lead is the cathode - . Use a 1/2 watt 1k resistor in series with a 12 volt supply. The LED flashes and changes color all on it's own with a built in microchip. It looks like a tiny black speck inside the LED. It has no effect on the brightness. I think these Led's are a great buy for the money. They did not come with 1 k resistors. I forgot what they came with. Important you use 1 (1k ) resistor per LED in series. Look up charts on LED's brightness,current draw , voltage and proper voltage drop resistor for you... » Read More These LED's only have two leads. The longer Lead is the Anode +,and the shorter Lead is the cathode - . Use a 1/2 watt 1k resistor in series with a 12 volt supply. The LED flashes and changes color all on it's own with a built in microchip. It looks like a tiny black speck inside the LED. It has no effect on the brightness. I think these Led's are a great buy for the money. They did not come with 1 k resistors. I forgot what they came with. Important you use 1 (1k ) resistor per LED in series. Look up charts on LED's brightness,current draw , voltage and proper voltage drop resistor for you application. « Show Less
2118563
This version is the old one with a CREE XM-L led instead of the CREE XM-L2. You can tell by the lumens. The new version puts out 550
1456096
i received the box today and it only states 56 smd leds... i also counted them: 56. Very misleading...
1219223
Yes. I have 4100k, (natural white) 5500k (day white), 6500k (bright white), and 7500k (cool white) light boards. I also have a mixed 3200 and 4100k led on the same light board which is a very bright, but not too warm or not too cool solution.
1437037
"k" is the color temp, has nothing to do with lumens or light output. the color will not change with added lights
387278
Baku,I'm not sure about your question...if your interest is photographic, 5500K refers to color temperature emission of essentially normal visual range... A 6500K color temperature will produce a shift to a cooler range of colors
1553660
This one throws light on the cooler color side. I don't know how many K it is. I bought the same style from another supplier on amazon that was on the warmer side. The higher the #K, the cooler the color, so 5500K would be on the warmer side.
966680
You have cause for concern. I installed 6 Commercial Electric T91 LED modules in new cans in my kitchen less than 3 years ago. One went last summer and of course, the model is discontinued. Luckily, I found one on eBay. Home Depot actually refunded the purchase price for the it. Now, a second one has gone out and not even eBay has any. The T91 is distinctly different from any other model that I've found, so now I will have a mis-matched one in the kitchen. So much for the long life expectancy of these things.