Am also interested in improved reverse lights, without installing additional lights in bumper such as Rigid leds. Don't know about Putco's but from recent thread "Back up lights" I believe Nick used -194 25 smt tower bulb- from Superlumination.com. I wrote superlumination and asked what they would recommend to give most light for the Raptor and response was...
For a back up light with a large housing and reflectors, I would look at the 921 12 watt cree:
> >
> >
http://superlumination.com/images/auto_bulbs/921_12watt_w_wm.jpg
> >
> > For a back up light with a smaller housing or less reflectors, I would look at the 921 5 watt cree:
> >
> >
http://superlumination.com/images/auto_bulbs/921_5watt_cree_w_wm.jpg
> >
> > Both are on this page here:
> >
> >
906 921 Interior Lights
> >
> > Either of those will be brighter in a back up light application than the 194 25 smt tower bulb.
Not having taken taillight apart, I asked what would fit in Raptor's, the answer...
The 12 watt dimensions are: 14mm diameter x 53 mm overall
The 5 watt dimensions are: 15mm diameter x 46 mm overall
The 194 smt Tower III is 11mm diameter x 38mm
The dimensions of a stock 906 bulb are:
m.o.l.: 1.49 inch (37.8MM)
l.c.l.: 0.811 inch (20.6MM)
So fitment Q not really answered. The 12W cree sounds promising but at $25 each, I want sure these fit before ordering. They are 15mm longer than the 194 Tower. Just by eyeballing the current bulb in the housing, it looks like the 12Wcree would be a tight fit. The pics above from Patsraptor looks to throw out way more light than stock. Didn't think replacing a bulb would be this involved. Trying to decide which way to go....
