- Convenient usb port design; you can connect SV172 dew heater strip to power source with usb port; such as 5V power bank; car charger; laptop; desktop computer etc
- Keep your devices from fog dew freezing when the dew was a big issue and it can keep your devices dry; the built in aluminum film conduct even heating surface; no dead angle left
- Temperature adjustment; strong medium weak 3 gear heating modes that you can adjust the temperature according to your requirements
- Heating quickly and evenly; built in aluminum for even heating; alloy fiber heating wire provides super fast; three layer insulation material to reduce heat dissipation
- 50mm narrow width does not interfere focusing; and will not produce dark corners in the field; it is also the width that reduces interference for other accessories on the lens barrel