 LED H4 conversion |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
| Harpo |
 Dec 7 2013, 10:31 AM
Post
#1
|
|
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 |
   |
 
|
  |
Replies
| mikesmith |
Dec 7 2013, 02:57 PM
Post
#2
|
|
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. |
|
|
|
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 |
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 2nd April 2026 - 04:53 PM |
Invision Power Board
v9.1.4 © 2026 IPS, Inc.