Lens Warmer Strap, USB Operated, 32 cm 3 heat settings, all-round nylon construction for optical equipment in damp air conditions

Clearer look in moist air: this heating tape provides gentle warmth around lenses and small optical tubes, helping to reduce the formation of late observation hours, when using the garden and when doing outdoor camera work 3 HEAT MODE CONTROL An inline controller with high, medium and low settings helps you adjust the heat to changes in humidity during evening viewing or using outdoor cameras without additional setup steps DESIGNED FOR USE AT NIGHT Use this strap when cool air and humid conditions can affect visual acuity, no matter you're watching stars, taking long exposure photos, or setting up optics camp or in the yard Practical USB power supply on site: the USB A port and 5V-2A input design match common power supply configurations and offer you a practical heating accessory for portable astronomy kits and photographic equipment All-round nylon structure: flexible wrap design encloses compatible optical sockets and ensures neat placement, while the nylon outer layer supports neat packing in gear bags, field gears and travel cases