Stefan-Boltzmann Lamp

Product Code: TD-8555


The temperature of this 12 V incandescent lamp filament can be accurately determined by measuring the voltage and current that students supply to the lamp (a graph of Temperature vs. Resistivity is provided).


  • Radiation from a hot object (˜ 3,000 K)
  • The Stefan-Boltzmann Law (R = sT4) at high temperatures
  • The Inverse Square Law for thermal radiation

Requires One Of These

Student Power Supply, 18 VDC, 3 A SE-8828
12 V DC Power Supply