 LED H4 conversion |
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| Harpo |
 Dec 7 2013, 10:31 AM
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Senior Member  Group: Members Posts: 1,304 Joined: 21-August 11 From: Motor City aka Detroit Member No.: 13,469 Region Association: None  |
This seems too good to be true. If the seller had a higher rating I might consider it.
http://www.ebay.com/itm/LED-Headlight-Conv...300442806023%26 David |
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| mikesmith |
Dec 7 2013, 02:57 PM
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#2
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Member Group: Members Posts: 202 Joined: 5-September 13 From: SF Member No.: 16,354 Region Association: Northern California |
The light output from a planar LED like this is not uniform through 180°; they are much dimmer off-centre, and the centre of emission is substantially offset from the H4 filament location in these assemblies.
By all means, buy and try, just be aware that a these violate a couple of basic assumptions in the H4 reflector design and as a consequence the beam pattern you get won't be as intended. |
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Posts in this topic
Harpo LED H4 conversion Dec 7 2013, 10:31 AM
JmuRiz Very interesting, I know nada about lights etc...w... Dec 7 2013, 01:25 PM billh1963 That is cool. I wonder about longevity, legality, ... Dec 7 2013, 01:39 PM pcar916 This is bulbs and electronics for later cars that ... Dec 7 2013, 02:18 PM
Spoke
... but fans? Really.
Contrary to marketing of l... Dec 7 2013, 02:59 PM gothspeed So far i was gonna go HID, because they draw less ... Dec 7 2013, 02:22 PM mikesmith These are going to give you a weird light throw pa... Dec 7 2013, 02:28 PM Mike Bellis If your reflector in the lens is not setup for the... Dec 7 2013, 02:33 PM gothspeed The only time you need 360 degree light is during ... Dec 7 2013, 02:37 PM mikesmith ... and that someone is at least *trying* to do th... Dec 7 2013, 03:12 PM gothspeed It would actually be a good thing that more light ... Dec 7 2013, 03:13 PM mikesmith It's not going to be "on axis" becau... Dec 7 2013, 10:58 PM gothspeed The whole point of the parabolic reflector is to e... Dec 7 2013, 11:31 PM Eric_Shea Back to the "I doubt it would fit with the fa... Dec 8 2013, 09:41 AM mikesmith I'm not done with "you don't seem to ... Dec 8 2013, 02:05 PM gothspeed Light from a projector is 'focused' to a v... Dec 8 2013, 08:20 PM tomeric914 Not cheap, but well known in the HD trucking indus... Dec 8 2013, 10:03 PM mikesmith I mentioned these earlier. The GE units are just r... Dec 8 2013, 11:11 PM gothspeed I have seen those truck lights, they have a divder... Dec 9 2013, 05:07 AM wndsnd If you are buying these for long life consider thi... Dec 9 2013, 08:22 AM |
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