I'm trying to build a desk toy that has three small LED bulbs that come on automatically when the object is turned 90 degrees.
Assumming that a small mercury switch between the bulbs and the battery would do the trick.... but I have no clue on following items.
How do I determine what size bulbs to get and approx how many hours of life the battery would provide with a certain size bulb? (looking for something that would run a minimum of 10-20 hours)
Is there another option besides a mercury switch (something a little more "shock resistant" would be nice)
Where would I look to purchase these items (bulbs, switch)
Pardon my ignorance, I am more of a woodworker than an electonics wiz. I appreciate any help I can get..