Dew heater with 20 cm strap is designed to fit around a DSLR lens. Works with 5V USB Powered Hubs and Battery power tanks, and produces 4W of power.
Equipped with standard USB A plug. Comes with 2m silicone cable. The strong velco strap makes it easy to wrap it around your DSLR Lens and hold it in place.
A 20000mAh battery can provide up to 8-9 hours of heating power. *
Note! The OTA size is only estimated. Please check your OTA circumference before buying.
* New battery packs, and quality of battery pack will determine total power consumption.