. Blog Posts – Tagged "near infrared bulbs and lamps" – Page 2 – TheraBulb
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      Blog Posts — near infrared bulbs and lamps

      Irradiance and Red Light/Near Infrared Bulbs

      image showing how the irradiance of a heat lamp bulb decreases as the distance from the infrared light bulb increase
      Irradiance is the technical term for intensity of light. Irradiance can apply to both visible light, which can be seen with the naked eye, and infrared energy, which is not perceptible to the naked eye. Whether the light/energy is visible or not, its irradiance decreases as distance from the source increases. 

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