Neewer USB FPC Lens Heater for Camera & Telescope Lenses (19.7")

Keep fog, dew, and condensation from forming on your camera, spotting scope, or telescope lens with this 19.7" USB Lens Heater for Camera & Telescope Lenses from Neewer. The black/purple heating strap wraps around lenses up to 159mm in diameter and warms the glass with power supplied by an integrated 6' cable to a 5V/2A USB-A port. The temperature regulator provides three settings: High Mode (125.6°F), Middle Mode (113°F), and Low Mode (98.6°F). The warmer secures around your lens via touch-fastener.