which light bulb?

Discussion in 'suburban75' started by wayward bob, Feb 2, 2018.

  1. wayward bob

    wayward bob i ate all your bees

    dear urban please help my scrambled brains. say i have a lamp that's a simplified version of this

    [​IMG]

    and i want to cast the strongest, clearest shadows. what size/type of lightbulb should i look for? not the fitting end, the end where the light is.

    tia :)
     
    Fez909 likes this.
  2. weltweit

    weltweit Well-Known Member

    I would have thought if you want to throw a clear shadow you want a bulb which produces light from the smallest area. If that is right then an older fashioned bulb with a small filament rather than a modern bulb with long tubes.

    hth
     
    wayward bob likes this.
  3. 2hats

    2hats

    You want a point source to cast clearly defined shadows. Perhaps a ceramic metal halide bulb? Maybe even a suitable geometric arrangement of them to project each face of the cube?
     
    dessiato likes this.
  4. dessiato

    dessiato Maholo e ke akua no kei la

    What about a halogen, or, perhaps better, LED? Both are small and relatively strong light sources.
     
  5. joustmaster

    joustmaster offcumdun

    5 strong, small bulbs with something shielding each bulb's direction from the others.
     
  6. wayward bob

    wayward bob i ate all your bees

    ... a simplified version of ... :D
     
  7. wayward bob

    wayward bob i ate all your bees

    one standard screw lamp fitting in the centre, so i guess the smaller the bulb the better :thumbs:
     
  8. wayward bob

    wayward bob i ate all your bees

    it doesn't need to be bright enough to cast shadows a long way. what's the smallest size bulb you can get on a standard fitting?
     
  9. BigTom

    BigTom Well-Known Member

    I would think LED would be good for this, small single point light source, most energy efficient type afaik as well. Can get LEDs in a variety of colour temperatures so a nice stark bright white should be achievable I reckon which would help with getting strong, sharp shadows.
     
  10. cybershot

    cybershot Well-Known Member

    Please don't release the Cenobites!! (need to have seen hellraiser to get this)
     
    pogofish likes this.
  11. wayward bob

    wayward bob i ate all your bees

    this is my bedside lamp, not an exhibition thing btw :D
     
  12. Nice one

    Nice one Well-Known Member

    i work changing lights in offices - best i've come across are Engergizer LED bulbs. They give a clean crisp clear light without any glare. Even on a low wattage they're brighter than most ordinary bulbs.
     

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