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<blockquote data-quote="Spr0ket" data-source="post: 985504" data-attributes="member: 560341">The blue LEDs are 3.3V max with an MCD of 4000 (some of the brightest blue I have found).&nbsp; To give you an idea of how bright they are, eight of them will give out the equivalent light of a standard 12W dome light.&nbsp; 16 LEDs should be freaking insane.&nbsp; If you have put the LEDs into a plexiglass housing, you should be fine and have little to no blotchy patterns.&nbsp; If any of them are exposed to a visible area of the plexiglass, I would shave the very top of the LED down using a simple plastic file.&nbsp; Don&#039;t shave it beyond the rounded part though, that can cause trouble.&nbsp; As for wiring them up, I would wire them up parallel with their own 480 ohm 1/4W resistor for the best even glow.&nbsp; That will limit the power draw down to roughly 3.28V on a 14.4V feed.&nbsp; Now if you have an upgraded electrical system or plan on upgrading to a high output alternator, you will need to use 560 ohm 1/4W resistors or higher.&nbsp; The difference in ohm change is not even noticable.&nbsp; Just for grins, here&#039;s a daytime pic of my domelight (8 blue, 8 UV LEDs)<img src="http://www.requestfocus.com/images/car/domelight-finished-installed-side-small.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>

[QUOTE="Spr0ket, post: 985504, member: 560341"] The blue LEDs are 3.3V max with an MCD of 4000 (some of the brightest blue I have found). To give you an idea of how bright they are, eight of them will give out the equivalent light of a standard 12W dome light. 16 LEDs should be freaking insane. If you have put the LEDs into a plexiglass housing, you should be fine and have little to no blotchy patterns. If any of them are exposed to a visible area of the plexiglass, I would shave the very top of the LED down using a simple plastic file. Don't shave it beyond the rounded part though, that can cause trouble. As for wiring them up, I would wire them up parallel with their own 480 ohm 1/4W resistor for the best even glow. That will limit the power draw down to roughly 3.28V on a 14.4V feed. Now if you have an upgraded electrical system or plan on upgrading to a high output alternator, you will need to use 560 ohm 1/4W resistors or higher. The difference in ohm change is not even noticable. Just for grins, here's a daytime pic of my domelight (8 blue, 8 UV LEDs) [IMG]http://www.requestfocus.com/images/car/domelight-finished-installed-side-small.jpg[/IMG] [/QUOTE]

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