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???
03/22/12 21:31
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 		 #186822 - No need
Responding to: ???'s previous message
It isn't the huge strength, but the very visible change in light intensity that is the psychological trick.

For intensity, it's enough that the low beam is strong enough that you have a couple of meters of visible road when the car passes.

For many years, I used a Sigma lamp system with one 5W and one 10W halogen lamp. Turning off the 10W lamp was almost 100% effective to get the car driver to switch off the high beam. And the remaining 1% was efficiently curred by turning on the 10W lamp again - with a very tight and far-reaching bream it wins over the high beam of a car so no car driver ignores it. The 5W lamp has a very wide bream and can be aimed independently.

List of 28 messages in thread
TopicAuthorDate
mini quiz            01/01/70 00:00      
   Inner light in car?            01/01/70 00:00      
      could be            01/01/70 00:00      
         Button is power - not input signal            01/01/70 00:00      
   not an interior light controller            01/01/70 00:00      
   Coffee Pot safety            01/01/70 00:00      
      yup, that's it; however, just for fun ...            01/01/70 00:00      
         4bit applications            01/01/70 00:00      
            Yes but            01/01/70 00:00      
         One push button input, 5 outputs            01/01/70 00:00      
            Sounds like ...            01/01/70 00:00      
               That's it            01/01/70 00:00      
                  At a cost            01/01/70 00:00      
                     They're safer if used correctly            01/01/70 00:00      
                     isn't that the purpose?            01/01/70 00:00      
                        Purpose            01/01/70 00:00      
                     Illegal in Sweden too            01/01/70 00:00      
                     I was thinking of the rear light!            01/01/70 00:00      
                        A strong headlight that can be dimmed makes car drivers care            01/01/70 00:00      
                           about that strong headlamp            01/01/70 00:00      
                              Basically same same everywhere in "civilized" world            01/01/70 00:00      
                              Really strong headlights            01/01/70 00:00      
                                 I've not seen any truly powerful bike headlamps            01/01/70 00:00      
                                    Strong headlight            01/01/70 00:00      
                                       high-beam            01/01/70 00:00      
                                          Almost perfectly solved with suitable bike front light            01/01/70 00:00      
                                    2000 lumens enough?            01/01/70 00:00      
                                       No need            01/01/70 00:00      

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