Im reading how to install hids into my fogs and being a noob it sounds to difficult for me, i did my headlights(hids) 8k, so im wondering what the closets halogen bulb would be? Any ideas?
Many people believe that the higher the color temperature the brighter the lamp. This is totally wrong. The color temperature is purely a scale to measure the color of the light output. It is a reference purely for color and could equally be called White, Green or Blue. The reality is the higher up the scale, the less bright they become. 4300K lamps are approx 10% brighter (measured in Lumens, not degrees K) than the 6000K. With this being said the reason many people choose to move up to a higher Kelvin rating is because even the highest temperature ratings are still much brighter then a factory halogen setup.
What is Kelvin Temperature and what determines the brightness of a HID bulb?
Degrees Kelvin = ONLY COLOR
Lumen= BRIGHT
Definitions Candela (cd)
The international unit (SI) of luminous intensity. The term has been in use since the early days of lighting when a standard candle of a fixed size and composition was used as a basis for evaluating the intensity of other light sources. This unit is used in measuring headlight output; basically the higher the number is, the brighter the light is.
Lumen (lm)
The international unit (SI) of luminous flux (quality of lights). For example, a dinner candle produces about 12 lumens and a standard 60-watt incandescent bulb produces 830 lumens. The higher the number is, the brighter the light is
Kelvin (K) A basic unit of thermodynamic temperature (color temperature) used to measure the whiteness of the light output. The higher the number is, the whiter the light is. When over 5000K the light begins to turn to blue as daylight.
Please note:
Even though I often compare the difference between Halogen light to HID light an excerpt from the Philips website notes "It should be noted that halogen technology is not comparable to the Xenon discharge technology, fitted as original equipment to more and more of the world's finest cars." – Philips. The comparison is solely used as a base guideline as the property of each is completely different
An Explanation of the differences between the most common HID color temperatures.
Most customers have a common misconception that the higher the K (Kelvin temperature) the brighter it gets, but in fact, it is the opposite. The K rating is inversely proportional to the light output, therefore the lower the K the brighter the light output. Also Xenon runs cooler and than your traditional halogen, therefore it will not melt your housing as this is another misconception with Kelvin rating.
Color Temperature: 3000K (fog light use)
3000K has an approximately 3200lm output, which is more than 3x the light output of the traditional halogen light. 3000K emits GOLDEN YELLOW color and offers superior penetration power during adverse weather epically in dense fog. The applications of the 3000K kit aim more towards secondary lighting apparatus such as high beam and fog lights. This is the color temperature that will catch all the attention on the road.
Color Temperature: 4300K
4300K has an approximately 3200lm output, which is more than 3x the light output of the traditional halogen light and is the color temperature with the most output. The light appears fairly white, and has light yellowish hue when reflected off the road identical to the OEM HID equipped vehicles. This color is for the customer who is looking for pure performance white improving the looks of their headlight. It is ideal for customers who does a lot of back road or canyon driving and need the optimal visibility. This is the color temperature that will put the absolute most light on the road
Color Temperature: 6000K
6000K has an approximately 2800lm output, which is 3x the light output of the traditional halogen light and slightly less light output compared to the 4300K. Although it has a bit lesser light output, it emits pure whiter light with very slight and barely noticeable tint of blue and purple.
Color Temperature: 8000K
8000K has an approximately 2550lm output, which is about 3x the light output of the traditional halogen light and slightly less light output compared to the 6000K. While it has a bit lesser light output, it emits bluer light than the 6000K.
Color Temperature: 10000K
10000K has an approximately 2200lm output, which is more than 2x the light output of the traditional halogen light. 10000K produces a deep blue light output approaching violet and the blue is noticeably deeper than the 8000K.
Color Temperature: 12000K
12000K has an approximately 2100lm output, which is more than 2x the light output of the traditional halogen light. This color temperature puts out a deep bluish violet light and is deeper colored than the 10000K. It is for customer who is looking for the most extreme and most exotic looking light output.
Conclusion:
The majority of customers who are looking to upgrade their lighting often choose to do so based upon two common distinctions. Will this make my headlight brighter and what color will they now be? Especially in reference to HID lighting the confusion has become overwhelming. The above guide will serve to help each and everyone make an informed decision based upon their individual needs. I often get asked why would someone opt to purchase a set in the 10000-12000k range? As I have installed many hundreds of HID kits I wanted to make it known that even though less light is put on the road as the spectrum increases, to the average person’s eye the improvement of even a 12000k HID is far and beyond what their factory halogen bulbs were able to produce. With this being said I often recommend headlights kit between 4300 and 8000k as this will ensure the most amount of light will make it on the road.
Copied from an interesting read at Flashtech USA:
http://www.flashtechusa.com/
I know absolutely nothing about HID's, but I was curious about the Kelvin ratings vs. Lumens since it never seemed that the blue/purple lights were as bright...
Whats brighter ? 5k or 6k ? i know obivously 5k but im reading 6k is the way to go for some reason, whats the real difference between output?
In response to the original Question, without going into higher wattage or different technologies (HIR, HID etc.) the brightest in Coil Luminance and position, would be the Phillips Xtreme power. On Candlepowerforums.com they are the most referred to bulb when talking about the best halogen. And if you want contrast from your top HID's, get some yellow vinyl cling and apply that to the glass of your fogs. It makes it a good fog light and looks cool as well.
http://store.candlepower.com/bfcopotphxtp1.html
DO NOT buy Silverstars, they burn out early, are expensive, and produce less light.