LED Foglight Project |
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LED Foglight Project |
Spoke |
Apr 13 2019, 08:45 AM
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#1
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Jerry Group: Members Posts: 7,091 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
The design of an early foglight LED board has begun. mepstein sent me a couple of foglight fixtures to use to design the board. 2 main issues are fitment and heat dissipation. If things work out ok the design should be able to be re-laid out for the later square foglight.
The board will have 8 Cree XP-G3 high power surface mount LEDs with 350ma current each. These will burn about 1W of power with a total power dissipation expected to be less than 10W. Hopefully these will be almost as bright as a headlight. Each LED will have its own focusing lens. The lenses are Carclo 10192 elliptical 20mm lenses. The light pattern for the 10192 lens is shown below. This is the spectral dispersion for the lens. |
Spoke |
Jun 11 2019, 07:44 PM
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#2
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Jerry Group: Members Posts: 7,091 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
Finally got the 2nd 914 foglight assembled. This discrete converter kicks ass but is a pain in the ass to assemble.
The board on the left is a 911 foglight. I'm hoping to get those installed on my 930 this weekend. The 911 foglight uses a boost module and is much easier to assemble. The only difference at this point is the module is 350ma whereas the discrete converter is 500ma. I'm hoping the 911 foglight will still be significantly brighter than the OEM bulb even with the lower 350ma current. If the 911 foglight is bright enough, I may go with the module for the 914 foglights. I have 4 of these first 914 boards that I will build up. I'll put a pair on my 914 and give the other pair to mepstein. Attached thumbnail(s) |
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