What are the K kelvin color numbers. I want true light not 2700 k yellow. Which do I cjoose
1790687
The description shows 3500Kelvin which is what the original bulb is. Incandescent lamps run around 2,700-3,300K and standard tubular fluorescent bulbs run around 5,000K.
1790688
I think the light these give off are nice. Not so yellow looking. For K do your own research. Good Luck
1790689
not sure...i have the Overdrive 18watt ODD18W/4P/35K, G24q-2. Seems fairly white. box doesnt say anything about color. only that its brightness is equall to a standard 75watt bulb. it starts a bit yellow but gets whiter once warmed up, but mine is set behind a frosted shade so it cuts the brightness and probably some color. all in all it seems fairly white to me. hope this helps some.
737543
AS noted below, the White in the RGB (Red, Green, Blue) isn't a true white. However, Amazon offers OLS kits in Bright White and Warm White. Amazon's number for the Bright White is B002CQ0GYA. Warm White is B004ZO3BSK. My eyes aren't very good, so I need A LOT of light. They are pretty bright and the bright white and warm white have similar features such as 8 dim / bright settings. Plus On / Off. The warm white is around 3000 to 3500K temp. Bright white is 6000K to 7000k. Hope that helps.
150983
6000k is white with a hint of blue, 8000k is more blue. The higher the kelvin the darker the color and the less brighter the light. A lot of the brightness also has to do with the quality of the ballast as well as the headlight design.
1042670
Its the color temperature of the light in unit Kelvins. Check this out for more information. http://www.takecontrolandsave.coop/documents/CFLColorTemperature.pdf
2077714
Kelvin is usually used to rate cfl's the spectrum for Metal halide is mostly in the blue green for vegetative growth about 40,000 lumen's that equivalent would be in the higher range from 5000 to 6500 kelvin. For high pressure sodium the range is in the red area of the spectrum for flowering 50,000 lumen's the kelvin equivalent would be around 2700.I'm old school and Kelvin is a measurement of heat i.e. Fahrenheit, Celsius, Kelvin the kelvin scale is used primarily for extremely low temperatures close to absolute zero as a rule metal halide for vegetative growth and high pressure sodium for flowering but its always better if you can use both......Hope this Helps Kelvin is usually used to rate cfl's the spectrum for Metal halide is mostly in the blue green for vegetative growth about 40,000 lumen's that equivalent would be in the higher range from 5000 to 6500 kelvin. For high pressure sodium the range is in the red area of the spectrum for flowering 50,000 lumen's the kelvin equivalent would be around 2700.I'm old school and Kelvin is a measurement of heat i.e. Fahrenheit, Celsius, Kelvin the kelvin scale is used primarily for extremely low temperatures close to absolute zero as a rule metal halide for vegetative growth and high pressure sodium for... » Read More Kelvin is usually used to rate cfl's the spectrum for Metal halide is mostly in the blue green for vegetative growth about 40,000 lumen's that equivalent would be in the higher range from 5000 to 6500 kelvin. For high pressure sodium the range is in the red area of the spectrum for flowering 50,000 lumen's the kelvin equivalent would be around 2700.I'm old school and Kelvin is a measurement of heat i.e. Fahrenheit, Celsius, Kelvin the kelvin scale is used primarily for extremely low temperatures close to absolute zero as a rule metal halide for vegetative growth and high pressure sodium for flowering but its always better if you can use both......Hope this Helps « Show Less
2244668
How about this research Jerrey H, from an email I received from Paul C Buff Technical support:RE: AB 800/1600From: "Info at Paul C. Buff, Inc." <info@paulcbuff.com>To: Doug <dwdallam@yahoo.com> Hey Doug,Thanks for contacting us! The reduced power color shift on both units will change by about 2-300 degrees kelvin. Let us know if you have any other questions!Thank You!!!TashaCustomer ServicePaul C. Buff Inc.1-800-443-5542Check out our new forum! http://www.paulcbuff-techforum.com2-300 degree K is imperceptible to the human eye. So stuff that. How about this research Jerrey H, from an email I received from Paul C Buff Technical support:RE: AB 800/1600From: "Info at Paul C. Buff, Inc." <info@paulcbuff.com>To: Doug <dwdallam@yahoo.com> Hey Doug,Thanks for contacting us! The reduced power color shift on both units will change by about 2-300 degrees kelvin. Let us know if you have any other questions!Thank You!!!TashaCustomer ServicePaul C. Buff Inc.1-800-443-5542Check out our new forum!... » Read More How about this research Jerrey H, from an email I received from Paul C Buff Technical support:RE: AB 800/1600From: "Info at Paul C. Buff, Inc." <info@paulcbuff.com>To: Doug <dwdallam@yahoo.com> Hey Doug,Thanks for contacting us! The reduced power color shift on both units will change by about 2-300 degrees kelvin. Let us know if you have any other questions!Thank You!!!TashaCustomer ServicePaul C. Buff Inc.1-800-443-5542Check out our new forum! http://www.paulcbuff-techforum.com2-300 degree K is imperceptible to the human eye. So stuff that. « Show Less
2228476
(1) KELVIN = temperature of a lamp (5100K plus is considered "daylight"). (2) LUMEN = unit measuring light output of a lamp. (3) CRI = Color Rendition Index measures the true color of an object in the emitted light of a lamp and is of particular importance in film making, photograhic and television applications. I have no idea why this information is hidden.
946559
The numbers represent the temperature of the light; K=degrees in Kelvin. That's about all the science I know. 5000k represents Daylight. An example would be to go outside on a sunny day in the middle of the day. 2700k on the other hand is a bit warmer, a little bit more reddish I guess. It's the kind of light you get from a setting sun that looks reddish. Daylight is what I want in the kitchen so I can tell when my food looks weird. Warm light is what I want in the living/bed room at night to read a book or watch TV.
62900
Silverstars especially the high end HID equivalent are brighter than these. All light output in this type is usually rated in Kelvin. The hotter the burn of the light source the higher the Kelvin (usually) all meant to be toward 5000 to 6000 Kelvin or natural sunlight temps/light equivalent. In my opinion, the Phillips cast a cooler blue light usually associated with a 3500 to 40000 Kelvin scale. I ran them for about 3 weeks and went back to Silverstar HID equivalent for these very dark, no street lights, out in the country roads.
997020
Color changes as you increase kelvin but the visible light output decreases. Most vehicles with OEM HIDs are 4300k, but usually on aftermarket HIDs 6000k is preferred because it gives off white with a small hint of blue (diamond white). At 10000k the output will probably have a lot of blue in it and depending on your country/state you may get a ticket.
513808
Here is a link that shows how 4000K "looks" compared to other color-temperatures: http://www.ledwaves.com/About-Color-Temperature.html
1749927
Ballasts do not determine kelvin temperature (or the color of the light)......it's the bulbs :-)
1561263
Your right Vlad, it should be posted but for the most part those ratings aren't all that accurate. I've seen 6000K (pretty much what these are) As a white 5000K, A purpleish 6000K, and everywhere in between. Pictures are going to be the best bet in comparing color temperature.
150985
Those are the Kelvin Ratings. The 6000k is usually the most popular. The higher you go in the Kelvin Rating, you get more color in the light in exchange for visibility. So 6000k will be just slightly brighter than 8000k and 8000k will be slightly brighter than 10000k and so on but they will have more and more color to them. Its completely up to your preference on which one you choose. Hope that helps.
2057390
Both would fall in the "vertical daylight" spectrum. In other words, tending toward blue-white light or cool light. Very little of the yellow-orange spectrum or warm light is visible. The 6,500 shows a marked bluish color impression. Most flash units will tend toward the 5,500 Kelvin range since it is somewhat brighter than the 6,500K temperatures.
440676
Buy the 105's on Amazon - CFLs - Incandescent bulbs are too hot and make a strong yellow cast. These are color balanced at 6500k (sunlight range) http://www.amazon.com/LimoStudio-Fluorescent-Daylight-Photography-AGG878/dp/B0089Q1HCC/ref=sr_1_3?ie=UTF8&qid=1403890394&sr=8-3&keywords=cfl+105
1561264
Your right Vlad, it should be posted but for the most part those ratings aren't all that accurate. I've seen 6000K (pretty much what these are) As a white 5000K,A purpleish 6000K, and everywhere in between. Pictures are going to be the best bet in comparing color temperature.