Focal length and focus diameter of the Halogen Pont Heater HPH-60/f30

This video is a demonstration to confirm the focus diameter of the Halogen Point Heater HPH-60/f30.

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Examples of PID Auto-tuning of The Halogen Point Heater by the HPH-120 Focal length and focus diameter of the Halogen Pont Heater HPH-18 Focal length and focus diameter of the Halogen Pont Heater HPH-35 Focal length and focus diameter of the Halogen Pont Heater HPH-120/f45 Focal length and focus diameter of the Halogen Pont Heater HPH-160/f40 Heating of wire solder by the Halogen Point Heater HPH-35 Focal length and focus diameter of the Halogen Pont Heater HPH-60/f105 Temperature rising time of HPH-12/f6/12V-20W