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Quoted from Wolfmarsh:If you phrase the lamp setup differently it makes sense.
Each lamp has a 6 volt drop from one terminal to the next. If you connect them in series you have three 6V drops, so you need 18v to drive that circuit.
A 6v lamp doesn't drop 6v unless it's wired to a 6v source. All 3 lamps in series drop 2 volts apiece and will be very dim. In parallel they will each drop 6v but pull more amps from the battery and drain it quicker
Quoted from Star_Gazer:But if i touched that, i would get a shock of ...18,9 volts, right?
Measuring the potential across the broken bulb would give you 18.9v not 0. With a broken bulb you don't have a complete circuit. No current flow and you are just measuring the source potential.
Quoted from Star_Gazer:Burning lights question: Too much Ampere and/or Volts will burn my precious lights, right? How much can they handle (extra)?
Lamps_11.jpg (Click image to enlarge)
They only draw .25 apiece. The amp rating of your transformer doesn't affect their draw. If you connected too much load to the transformer it could overheat. As far as over voltage not sure what they can handle prob at least 10v apiece but your'e lowering their life span
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Seattle, WA