New $100 HIDs
- Thread starter Beowulf
- Start date
HenryJ
Expedition Leader
Here is another set of lights that must come from the same manufacturer: HIDfoglight.com - Truck lights Regular price:$209.00 Sale price: $129.00 These look to have a smooth reflector and may be a spot like pattern?
Here is yet another set of the lights: JC Whitney - Delta Offroad light $559.99 - $629.99
More: Lazer Star Dominator HID - 7" Spot $289.99 each This one may have a different light pattern.
Lazer Star press release
Gspeed racing Jeepspeed 1722 announces new sponsorship from Lazerstar lights and Morphic industries Looks like they have been around a while. that article is a couple years old.
Parts may not be hard to find at all. These lights use a H3 base and a halogen bulb could be substituted as evidenced from the Lazer Star website selling a halogen version of the same light.
This site: Xenonlink.com was recommended for bulbs and ballast if replacements are needed. I am still looking for a replacement protective cover. I have not found a source yet.
Here is yet another set of the lights: JC Whitney - Delta Offroad light $559.99 - $629.99
More: Lazer Star Dominator HID - 7" Spot $289.99 each This one may have a different light pattern.
Lazer Star press release
Gspeed racing Jeepspeed 1722 announces new sponsorship from Lazerstar lights and Morphic industries Looks like they have been around a while. that article is a couple years old.
Parts may not be hard to find at all. These lights use a H3 base and a halogen bulb could be substituted as evidenced from the Lazer Star website selling a halogen version of the same light.
This site: Xenonlink.com was recommended for bulbs and ballast if replacements are needed. I am still looking for a replacement protective cover. I have not found a source yet.
mog
Kodiak Buckaroo
PhulesAU said:
I found this on-line......way over my head. I'm just glad I can figure out which way to push the switch to turn the light on
There is no conversion or direct comparison between Lumens and candlepower. Candlepower is the measure of the brightest spot in the light beam. However this can vary depending on the focus of the beam, and the distance it is measured. No manufacturer lists the distance at which they measure the cp rating. Also they don't state the size of the hot spot they are measuring. It could only be a 1 inch bright spot in the edge of the beam. Lumens is the measurement of the total light output of a bulb, but not it's brightness. Most 60 watt incandescent light bulbs are rated at 800 lumens. This is more than even the brightest SureFire light, but compare the brightness of even the dimmest SureFire light to a desk lamp and the SureFire will be much brighter. Candlepower also changes by the focus of the beam, and the size of the reflector.
It is simple to compare units of illuminance and irradiance. Assume a light is producing one candela (the candela is the base unit in light measurement, and is defined as follows: a 1 candela light source emits 1 lumen per steradian in all directions isotropically. A steradian is defined as the solid angle which, having its vertex at the center of the sphere, cuts off an area equal to the square of its radius. This means that the one candela light produces one lumen/square foot at a distance of one foot. This is the same as a foot candle. The same light produces one lumen per square meter at a distance of one meter (as the light spreads out as it goes farther from the source). Go here for a full review: http://www.intl-light.com/handbook/ch07.html However, these data do not contradict the above posts warning you of the pitfalls comparing levels of irradiance or illuminance. The problem is that the above data, as stated, depend upon ISOTROPIC radiation; that is, the radiation is equal in all directions. Obviously, this is not the case in a lamp with a reflector which produces a focused beam, or an LED which radiates in a given direction. Thus, comparison between different units, as measured by different methodology is difficult if not impossible.
HenryJ
Expedition Leader
I am no expert. I know just enough to be dangerous and may not have my facts right. As I under stand it Kelvin describes the lights color temperature. Higher is whiter. Our perception of light is greater in the whiter ranges.PhulesAU said:
This may be helpful:
Candela - Lumen white paper This includes a Luminance Conversion calculator.Radiant Customs said:
Sort of like measuring the water in a lake as apposed to the flow in a stream. Both measure water. One is static, one is moving or the force. At least that is the way I think of it.
Some things I have been told. Bigger reflector equals bigger light. Closer to the color of the sun is better. Beyond that is not much of a gain.
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Colorado Ron
Explorer
Just picked up 10 today. They had to call around and empty all the stores around to get them all!:wings:
Smoking deal. Got the 25% off and they were on sale for $99.
Total for 10 was $778. Great deal I thought.
Smoking deal. Got the 25% off and they were on sale for $99.
Total for 10 was $778. Great deal I thought.
PhulesAU said:
Larger lamps produce more light, measured in lumens or candlepower. The degree of lumens, or candlepower either one, is a function of the reflector/lens combination, not the light source. Obviously the light source has something to do with ultimate light output, but for a given light source, the larger lens will make more light.
Also, the type of reflector and lens dictates how much light is put out, so that fogs and floods put out less lumens or candlepower, spots put out the most. This is generally due to diffusion versus focus or concentration of light.
As an example, 5" HID flood 35,000 candlepower, uses 35W HID bulb (D2S if I remember rightly); 8" HID driver 675,000 candlepower, uses the same bulb.
Also keep in mind that most units are sized by their outside dimension, not the size of the lens. The 8" HID's from KC Hilites as an example are actually 7" at the lens, and the reflector/lens element is nearly a dead ringer for a 7" round headlight.
There is an explanation for the phenomenon of larger lens and reflector making more light, but high school physics is way behind me now. Think of your average navigational lighthouse, with tall lenses and massive reflectors creating light that can be seen for miles. The lights inside those lighthouses are generally modest in size
C.P. versus Lumens
I snitched this commentary from an internet board. The discussion centers on flashlights, but the discussion is relevant --
"There is no conversion or direct comparison between Lumens and candlepower. Candlepower is the measure of the brightest spot in the light beam. However this can vary depending on the focus of the beam, and the distance it is measured. No manufacturer lists the distance at which they measure the cp rating. Also they don't state the size of the hot spot they are measuring. It could only be a 1 inch bright spot in the edge of the beam. Lumens is the measurement of the total light output of a bulb, but not it's brightness. Most 60 watt incandescent light bulbs are rated at 800 lumens. This is more than even the brightest SureFire light, but compare the brightness of even the dimmest SureFire light to a desk lamp and the SureFire will be much brighter. Candlepower also changes by the focus of the beam, and the size of the reflector."
Hope this helps. The point, I suppose, is that the manufacturer's ratings of a light's output are relative at best, and not absolute measures to be compared between brands or between dissimilar units by the same manufacturer. Still, if candlepower relates to a bright spot in a beam pattern, that would tend to explain why spot lights have higher C.P. ratings than spread beam lights such as fogs or floods. Or, if comparing similar units and one has a lumen rating of 2,600 and another just like it but with a different bulb (i.e., 10,000K HID versus 4,250K HID), I would go with the one with the higher lumen rating simply because it puts out more actual light (not to mention the color shift problems with high heat HID's).
I snitched this commentary from an internet board. The discussion centers on flashlights, but the discussion is relevant --
"There is no conversion or direct comparison between Lumens and candlepower. Candlepower is the measure of the brightest spot in the light beam. However this can vary depending on the focus of the beam, and the distance it is measured. No manufacturer lists the distance at which they measure the cp rating. Also they don't state the size of the hot spot they are measuring. It could only be a 1 inch bright spot in the edge of the beam. Lumens is the measurement of the total light output of a bulb, but not it's brightness. Most 60 watt incandescent light bulbs are rated at 800 lumens. This is more than even the brightest SureFire light, but compare the brightness of even the dimmest SureFire light to a desk lamp and the SureFire will be much brighter. Candlepower also changes by the focus of the beam, and the size of the reflector."
Hope this helps. The point, I suppose, is that the manufacturer's ratings of a light's output are relative at best, and not absolute measures to be compared between brands or between dissimilar units by the same manufacturer. Still, if candlepower relates to a bright spot in a beam pattern, that would tend to explain why spot lights have higher C.P. ratings than spread beam lights such as fogs or floods. Or, if comparing similar units and one has a lumen rating of 2,600 and another just like it but with a different bulb (i.e., 10,000K HID versus 4,250K HID), I would go with the one with the higher lumen rating simply because it puts out more actual light (not to mention the color shift problems with high heat HID's).
Colorado Ron
Explorer
Beowulf said:
HAHA! Better hurry. The $99 price ends this Sunday. I might order 6-10 more.