Lazer: Pen

: Typically AAA or lithium-ion batteries that provide the electrical energy.

: When electricity hits the diode, it excites electrons, which release photons (light particles). lazer pen

: Mirrors at either end of a small chamber bounce these photons back and forth, creating a chain reaction that intensifies the light. : Typically AAA or lithium-ion batteries that provide

Not all laser pens are safe for casual use. They are classified by their power output (measured in milliwatts, ): LASERPEN the LASER PEN it excites electrons

Laser pens come in various colors, each with different properties:

: A tiny semiconductor that converts electricity into light.