Light Up a Little Light Bulb with Batteries and Wires

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SUMMARY

This discussion focuses on illuminating a small light bulb using batteries and wires for a school project. The typical voltage for Christmas light bulbs is 12V, necessitating multiple batteries for proper operation. An alternative suggestion is to use LEDs, which are more efficient and have a longer lifespan. LEDs can be paired with built-in current resistors or standard 1.5V batteries, with guidance available for calculating the appropriate resistor value.

PREREQUISITES
  • Understanding of basic electrical concepts, including voltage and current.
  • Familiarity with LED technology and its advantages over traditional bulbs.
  • Knowledge of battery types and their voltage outputs.
  • Ability to calculate resistor values for LED circuits.
NEXT STEPS
  • Research how to calculate resistor values for LED circuits.
  • Explore different types of batteries suitable for 12V applications.
  • Learn about the advantages of using LEDs over traditional light bulbs.
  • Investigate compact battery holder designs for small projects.
USEFUL FOR

This discussion is beneficial for students, hobbyists, and DIY enthusiasts interested in basic electronics and lighting solutions for small projects.

Cundo007
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Hey... This is for a school projecct ...
Well... look i need to lighg up a little light bulb(like a christmass, those little ones)
but i don't don't know how, i can't use any plugs in the wall or anything... i was thinking on using some batteries and wires but i still don't know how...
If anyone knows please help me...
and the batteries nd wires are going inside an object so i can't be really big... the object is like a foot and a half by three fourths...
 
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First you need to know the volage of the bulb, the ones from christmas lights are typically 12V so you would need a few batteries.
It might be simpler to use an LED, it would last longer since it uses less electrical power.
Leds are available with builtin current resistors or you could use simply a couple of 1.5V batteries and we can show you how to work out the correct resistor when you have chosen the LED.
 

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