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Old 08-24-2006, 07:07 PM   #1 (permalink)
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Join Date: Jun 2006
Location: New York
Posts: 69
Car: 2007 Fit
Mods: Spoon Sports SW388 16x7
marokero has a spectacular aura aboutmarokero has a spectacular aura aboutmarokero has a spectacular aura about
LED dome light

In the animation below you can see the difference between OEM and led lights:



I matched (more or less) the incandecent white balance from the OEM bulb, the led light I had to set my camera to 10000K. It doesn't look a whole lot brighter, but it is much cooler looking, and it spreads the light souce over a larger area, so it softens the light compared to a single point of light. But I wasn't done, I had to measure the actual ammount of light that was being put out. Here are the resulting exposure values, all measured using a Sekonic L-358 light meter:

At 4 inches away
OEM = f/2.5 and 1/60s @ ISO 200
LED = f/2.5 and 1/60s @ ISO 200

With light meter resting on the passenger seat, close to the parking brake:
OEM = f.1.1 and 1/10s @ ISO 800
LED = f/1.3 and 1/10s @ ISO 800

With light meter resting on the passenger seat, close to passenger door:
OEM = f/1 and 1/10s @ ISO 800
LED = f/1.1 and 1/10s @ ISO 800

If those numbers and terms don't make sense to you, look up in a book on photography to learn the terms. But if you just want the gist of it, there's very little difference in light output between the OEM bulb and the led one. The leds spread the nearly same ammount of light over a wider area, so it seems brighter overall. But since it's led, it will use much less energy, won't heat up nearly as much, and it just looks cool in the car
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