NEEWER USB Lens Heater For DSLR Camera and Telescope - NEEWER

Description Effective 16"/400mm Heater Length- Eliminate dew, fog, and condensation with our specially crafted lens warmer during cold weather photography. For optimal performance and even heating
Description Effective 12/300mm Heater Length- Eliminate dew, fog, and condensation with our specially crafted lens warmer during cold weather photography. For optimal performance and even heating, it is recommended to use on lenses or telescopes with a circumference of up to 10.8/275mm and a diameter of 86mm Effective 16/400mm Heater Length- Eliminate dew, fog, and condensation with our specially crafted lens warmer during cold weather photography. For optimal performance and even heating, it is recommended to use on lenses or telescopes with a circumference of up to 15/375mm and a diameter of 120mm Effective 20/500mm Heater Length- Eliminate dew, fog, and condensation with our specially crafted lens warmer during cold weather photography. For optimal performance and even heating, it is recommended to use on lenses or telescopes with a circumference of up to 18.7/475mm and a diameter of 150mm USB Power Source- Plug into a USB power adapter, a portable charger, or other power sources that offer a USB 5V 2A output. The 4.9ft/1.5m long USB cable makes the heater ideal for indoor and outdoor use 3 Temperature Levels- A temperature regulator offers 3 settings (High Mode: 55-65°C; Middle Mode: 45-55°C; Low Mode: 35-45°C) to suit different weather environments Touch Fastener Design- With handy touch fasteners, the heater can wrap around your lens or scope with security and is easy to adjust For Other Applications- As a multipurpose heater with a whole length of 20/500mm (including the fastener part), it can also keep your baby bottle and coffee cup warm on winter days, or warm up your wrist, elbow, and ankle when they feel cold Specifications 300mm Effective Heating Length: 11.8/300mm Whole Length of the Belt: 15.7/400mm Temperature Adjustable: Yes Input Voltage: DC 5V Input Current: 1.8A-1.95A Connector: USB Type A Cable Coating: Nylon Cable Length: 4.9ft / 1.5m Power: 9W-9.25W Net Weight: 2.6oz / 75g 400mm Effective Heating Length: 15.7/400mm Whole Length of the Belt: 19.7/500mm Temperature Adjustable: Yes Input Voltage: DC 5V Input Current: 1.8A-1.95A Connector: USB Type A Cable Coating: Nylon Cable Length: 4.9ft / 1.5m Power: 9W-9.25W Net Weight: 2.6oz / 75g 500mm Effective Heating Length: 19.7/500mm Whole Length of the Belt: 23.6/600mm Temperature Adjustable: Yes Input Voltage: DC 5V Input Current: 1.8A-1.95A Connector: USB Type A Cable Coating: Nylon Cable Length: 4.9ft / 1.5m Power: 9W-9.25W Net Weight: 2.6oz / 75g Package Contents 1 x Lens Heater with Temperature Regulator 1 x Storage Pouch 1 x User Manual