Energy of a Photon Demonstrator

Item # P6-8022

Regular price $19.50
Regular price Sale price On Sale $19.50
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Determine the value of Planck's Constant with this Energy of a Photon Demonstrator. Watch as LEDs convert the energy change of one electron into one light photon.

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Additional Details

Electricity Energy Demonstrator - Dramatically prove that different colors contain different energy potential!

Light emitting diodes, LEDs, convert the energy change of one electron into one light photon. With the Energy of a Photon Demonstrator, slowly increase the energy of the electrons by increasing the voltage across the LEDs and you will see that the red LED comes on at the lowest voltage, then the green, and finally the blue at the highest voltage.

Product comes assembled but you will need your own capacitor and a variable DC power supply. We recommend the Genecon (P6-2631) and our 5V 1 farad capacitor (P6-8012).

Products being sold are not toys. They are for Educational / Laboratory use only. They are not for use by children 12 and under.


What’s Included

  • 4 LEDs (Red, green, blue, IR)
  • 4 100-ohm resistors
  • Small circuit board
  • Stand


Order Qty Price Qty for Discount Discount Price Total Savings
Genecon Hand Crank Generator Genecon Hand Crank Generator Item # P6-2631
$45.00 12 $41.80
1 Farad Capacitor 1 Farad Capacitor Item # P6-8012
$27.00 6 $25.40
Alligator Leads, 24 Alligator Leads, 24" (Pack of 10) Item # P4-3000
$6.95 20 $6.30