DIY, making a low power lens dew heater

[Astrofriend]

I bought two new dew heaters. They are sold to be used on camera lenses and powered from USB. I have modified them to reduce the power from 8 Watt to 2 Watt which will be enough for my demand.

Some photos and documentation from this project:
http://www.astrofriend.eu/astronomy/projects/project-heating-band/05-project-heating-band.html

This will be battery operated and I try to reduce the power consumtion of the equipment.

/Lars

[Astrofriend]

I have now used my new USB dew heaters out in the cold night. Many positive things, I can reduce the power a lot. From my earlier dew heaters at 5.6 Watt I can now go as low as 1 Watt. Important when out on the fields and on battery.

Photos and text:

http://www.astrofriend.eu/astronomy/projects/project-heating-band/05-project-heating-band.html

/Lars

Edited January 9, 2022 by Astrofriend