NC 'custom' LED lights retrofitted?

[Phil Martin]

We make many lenses, diffuser, holders etc for these LED's that may be
useful.
----- Original Message -----
From: <don.broadus at exeloncorp.com>
To: <diy_efi at diy-efi.org>
Sent: Tuesday, January 30, 2001 6:38 PM
Subject: RE: NC 'custom' LED lights retrofitted?


> The white LED is amazing in its brightness, the blue /violet LED's are
> brilliant in color . I haven't found the Nichia green yet. I bought the
book
> "The Blue Laser Diode" by the Nichia inventor of the blue/green and blue
> laser diode. expensive book but very interesting.
>
> > -----Original Message-----
> > From: Phil Martin [SMTP:phil at muts.freeserve.co.uk]
> > Sent: Tuesday, January 30, 2001 8:06 PM
> > To: diy_efi at diy-efi.org
> > Subject: Re: NC 'custom' LED lights retrofitted?
> >
> > I work for a company that use thousands of led's a week from HP led's in
> > red
> > , amber and also Nichia white, green and blues. You have to be careful
> > when
> > buying these as they come from different bins and the brightness can
vary
> > hugely. I have some 15 degree white LED's that are good enough for a
small
> > torch.
> >
> > All the led's have a life of aprox 127 years at 20mA except for the
white
> > which are at half brightness after 18 months continuous. This is because
> > thay are essentially a UV led with a white phosphor and the UV kills the
> > plastic.
> >
> > Run them all at 30mA and you should have no problems under nearly any
temp
> > conditions.
> >
> >
> > ----- Original Message -----
> > From: "Pat Ford" <pford at qnx.com>
> > To: <diy_efi at diy-efi.org>
> > Sent: Tuesday, January 30, 2001 3:14 PM
> > Subject: RE: NC 'custom' LED lights retrofitted?
> >
> >
> > > To make matters worse the leds current requirements are temp
dependent.
> > >
> > > Previously, you (don.broadus at exeloncorp.com) wrote:
> > > { it is going to be very hard to get cost in line on even on a group
> > buy.
> > The
> > > { best thing to do is get a bunch of third brake light bars from the
> > junk
> > yard
> > > { and use the high brightness leds off of these. Most red Leds have a
> > view
> > > { angle of only 15 degrees or so. The new white Leds have a view angle
> > of
> > 135
> > > { degrees but are $2 each.  You can bust out the glass of the old 1157
> > bulb
> > > { and group 3 leds for
> > > { running and 3 for brake light. The current limiting resistors
control
> > the
> > > { brightness
> > > {
> > > {
> > >
> > >
> > > --
> > > Pat Ford                           email: pford at qnx.com
> > > QNX Software Systems, Ltd.           WWW: http://www.qnx.com
> > > (613) 591-0931      (voice)         mail: 175 Terence Matthews
> > > (613) 591-3579      (fax)                 Kanata, Ontario, Canada K2M
> > 1W8
> > >
> > >
>
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> > >
> >
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>
>
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