Ah vibration, good point, I'd not thought about that. On 20 Feb 2012, at 09:25, TonyV <[email protected]> wrote:
> I'm with Jim on the slow warmup time. > > There's also the question of vibration. CFL type lights use a long, > thin glass tube which is only supported at the ends. > That's fine for a static installation in a house, but in the harsh > environment of a car, I can well imagine it snapping off at the > supporting ends. > The issue could be addressed with extra supports, but it's never going > to be ideal. > > Also, flourescents emit a very wide spectrum of light, which has to be > limited using powdery type stuff applied to the inside of the tube. > The tubes used in sunbeds are very similar to normal, everyday tubes, > it's just this powder which is different. > Excessive vibration can disturb this powder, knocking it off the tube, > leaving you with headlights which operate from the UV spectrum > downwards. > Again, it's not insurmountable, but why bother when the slow startup > is going to pose problems anyway? > > TonyV. > > > On Feb 20, 9:14 am, "Jim Hearne" <[email protected]> wrote: >> You can focus any light, though maybe it's easier if you start with a small >> source. >> You can get fluorescent bulb floodlights in the same size housings as the >> normal 150 or 200 ones. >> Maybe it's because of the slow warmup time, you'd have to wait a few mins >> before driving off in the dark. >> I think probably it's just because HID was better. >> >> Jim >> >> -------------------------------------------------- >> From: "Eddie" <[email protected]> >> Sent: Sunday, February 19, 2012 4:44 PM >> To: "Quantum Owners Group" <[email protected]> >> Subject: [Quantum Owners] Re: Car headlights >> >> >> >> >> >> >> >>> I think it might be because the light is not focused. >> >>> Any others with ideas ?? >> >>> On Feb 19, 1:27 pm, Matthew Wastell <[email protected]> wrote: >>>> Why don't cars use fluorescent headlights? >> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Quantum Owners Group" group. >>> To post to this group, send email to [email protected] >>> To unsubscribe from this group, send email to >>> [email protected] >>> For more options, visit this group at >>> http://groups.google.com/group/quantumowners?hl=en >> >>> IMPORTANT NOTE: All information presented herewith is provided on an "As >>> Is" basis, without warranty or the implication thereof. Neither the >>> Quantum Owners Club nor the individuals associated with the Quantum Owners >>> Club or in the preparation of the above information shall have any >>> liability to any person or entity with respect to liability, loss, or >>> damage caused or alleged to be caused directly or indirectly by the >>> instructions contained within this or related message(s). > > -- > You received this message because you are subscribed to the Google Groups > "Quantum Owners Group" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group at > http://groups.google.com/group/quantumowners?hl=en > > IMPORTANT NOTE: All information presented herewith is provided on an "As Is" > basis, without warranty or the implication thereof. Neither the Quantum > Owners Club nor the individuals associated with the Quantum Owners Club or in > the preparation of the above information shall have any liability to any > person or entity with respect to liability, loss, or damage caused or alleged > to be caused directly or indirectly by the instructions contained within this > or related message(s). -- You received this message because you are subscribed to the Google Groups "Quantum Owners Group" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/quantumowners?hl=en IMPORTANT NOTE: All information presented herewith is provided on an "As Is" basis, without warranty or the implication thereof. Neither the Quantum Owners Club nor the individuals associated with the Quantum Owners Club or in the preparation of the above information shall have any liability to any person or entity with respect to liability, loss, or damage caused or alleged to be caused directly or indirectly by the instructions contained within this or related message(s).
