--- product_id: 494825938 title: "USB Lens Warmer, Lens Dew Heater Strip with Temperature Regulator, Condensation Prevention for Telescopes Camera DSLR Lens Telescope Eyepieces Less Than 3.15 inch (80mm) in Diameter" brand: "kiwifotos" price: "1703808₫" currency: VND in_stock: true reviews_count: 5 category: "Kiwifotos" url: https://www.desertcart.vn/products/494825938-usb-lens-warmer-lens-dew-heater-strip-with-temperature-regulator store_origin: VN region: Vietnam --- # USB powered for on-the-go 3 adjustable heat modes Prevents lens condensation USB Lens Warmer, Lens Dew Heater Strip with Temperature Regulator, Condensation Prevention for Telescopes Camera DSLR Lens Telescope Eyepieces Less Than 3.15 inch (80mm) in Diameter **Brand:** kiwifotos **Price:** 1703808₫ **Availability:** ✅ In Stock ## Summary > 🌙 Keep your lens crystal clear—never miss a shot in the cold! ## Quick Answers - **What is this?** USB Lens Warmer, Lens Dew Heater Strip with Temperature Regulator, Condensation Prevention for Telescopes Camera DSLR Lens Telescope Eyepieces Less Than 3.15 inch (80mm) in Diameter by kiwifotos - **How much does it cost?** 1703808₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/494825938-usb-lens-warmer-lens-dew-heater-strip-with-temperature-regulator) ## Best For - kiwifotos enthusiasts ## Why This Product - Trusted kiwifotos brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **USB-Powered Portability:** Plug into any USB power bank or device for uninterrupted outdoor use. - • **Customizable Warmth Control:** Choose from low, medium, or high heat to match any chilly environment. - • **Universal Fit for Lenses <80mm:** Designed to snugly wrap around most DSLR, telescope, and camera lenses under 3.15 inches diameter. - • **Rapid Heat Transfer & Insulation:** Premium composite fiber and neoprene materials ensure fast warming and effective dew prevention. - • **Effortless Installation & Storage:** Hook-and-loop fastener for quick setup plus a sleek pouch for compact storage and travel. ## Overview The Kiwifotos USB Lens Warmer is a lightweight, portable dew heater strip designed for lenses and telescopes under 80mm diameter. Featuring three adjustable heat settings and powered via USB, it prevents condensation and frost buildup during cold outdoor shoots. Made with high-quality composite fiber and neoprene, it offers fast heat transfer and excellent insulation. Easy to install with a hook-and-loop fastener and includes a storage pouch, making it an essential accessory for nightscape photographers and astronomy enthusiasts alike. ## Description USB Lens Warmer, Lens Dew Heater Strip Product Highlights Specially designed for camera lenses and telescopes Prevents condensation by warming up the lens on a camera or telescope Fits outside diameters less than 3.15" With low, medium and high heating modes Runs on external USB power Hook-and-loop fastener makes it fast and easy to attach and remove Specification Net Weight: approx. 59g Input: DC 5V 2A Heating Level: low, medium and high Cable Length: approx. 1.5m Product Dimension：133x55x35mm Package Dimension：75x37x170mm Material：Composite Fiber Heating Coil+Neoprene with OK Cloth+Polyester Package Includes Dew Heater Strip x 1 Storage Pouch x 1 Review: I use this when doing nightscape photography and it does a great job of keeping the dew from forming on my lens. It has low, medium and high settings and so far I’ve only had to use medium. I power it with a usb battery bank. (Not included) Comes with a pouch that’s perfect for storing hit and the battery together. Review: Astronomy. New to the hobby... and I am so glad these work as well as they do;-) Anyone who stares through a telescope on a winter night would understand. No drama, just plug it in and does the job nicely. Comes with a nice bag (some don't, I have others), has a nice cord that is easy to manage when cold. And the cord has been long enough to work fine for my needs (8"dob with a battery at it's base). I leave it on all night. In the beginning I checked the temperature regularly but now have just settled in to taking it for granted (sigh of relief) ## Features - 【Widely Used】: ***NOTE:Due to the adjustment of the controller's appearance, but the function has not changed, the inventory of the new and old versions may be mixed together, so the new and old versions will be shipped randomly.*** suitable for telescopes, viewfinder lenses, digital cameras of most sizes (Diameter less than 80mm). Thermos, drink cup, baby bottle or any good idea that requires insulation. - 【Adjustable Temperature】: The product is equipped with a 1.5m temperature regulator with low, medium and high modes. Low temperature wire design can withstand temperatures as low as -40°C, and will not freeze and break in a cold environment for a long time. - 【USB power supply】: USB port design, Suitable for long-term outdoor heating of the lens. You can connect it to a power bank or any other power source with a USB port. - 【Fast heat transfer and Good thermal insulation】: Our lens heater prevent the lens from fogging by heating the camera lens or telescope, so as not to affect the effect of the equipment. Made of high-quality materials with fast heat transfer and good thermal insulation. - 【Quick installation and Removal】: Can be adjusted according to the size of the lens, suitable for lenses with an outer diameter of less than 80mm(3.15 inch). ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B083NJCFCH | | Item model number | DHS-1 | | Manufacturer | Jinjiacheng Photography Equipment Co.,Ltd. | | Product Dimensions | 13.3 x 5.5 x 3.5 cm; 59 g | ## Product Details - **Brand:** Kiwifotos - **Eye piece lens description:** Plossl - **Objective lens diameter:** 80 Millimeters - **Optical tube length:** 3.15 Inches - **Product dimensions:** 3.5D x 13.3W x 3.5H centimeters ## Images ![USB Lens Warmer, Lens Dew Heater Strip with Temperature Regulator, Condensation Prevention for Telescopes Camera DSLR Lens Telescope Eyepieces Less Than 3.15 inch (80mm) in Diameter - Image 1](https://m.media-amazon.com/images/I/71RRFiMz9BS.jpg) ## Questions & Answers **Q: Does this device have to use the timer? Can it stay on and off without using the timer? Is the the timer just an additional feature?** A: You do not need to use a timer with this device. Additionally, it has three heat settings: low, medium, and high. **Q: What's the wattage for each setting hi/med/lo ?** A: Not sure wattage. I used in sub freezing (20*F) weather on lowest setting and had no fogging/dew on Nikkor Z20mm 1.8, Nikkor Z70-200 2.8, and a Tokina 14-28 2.8. Works well, surprisingly low cost. (I use a cheaply rechargeable battery bank) **Q: Recommended power bank that is known to work with this dew heater?** A: Any that are 2.1 to 2.5 amps **Q: Does this unit automatically turn off? i need a lens warmer that will last 4-5 days without turning off.** A: Only if your battery runs out. No thermostat… just constant heat settings ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by K***A on 23 May 2025* I use this when doing nightscape photography and it does a great job of keeping the dew from forming on my lens. It has low, medium and high settings and so far I’ve only had to use medium. I power it with a usb battery bank. (Not included) Comes with a pouch that’s perfect for storing hit and the battery together. ### ⭐⭐⭐⭐⭐ Review *by S***T on 11 December 2023* Astronomy. New to the hobby... and I am so glad these work as well as they do;-) Anyone who stares through a telescope on a winter night would understand. No drama, just plug it in and does the job nicely. Comes with a nice bag (some don't, I have others), has a nice cord that is easy to manage when cold. And the cord has been long enough to work fine for my needs (8"dob with a battery at it's base). I leave it on all night. In the beginning I checked the temperature regularly but now have just settled in to taking it for granted (sigh of relief) ### ⭐⭐⭐⭐ Review *by J***Y on 31 October 2023* The instruction print is a bit small. To turn on hold the button for about two seconds. What's nice: it's long, and it comes in a nice pouch. Con: It may be just me, but I prefer my cables to be modular, this isn't. ## Frequently Bought Together - USB Lens Warmer, Lens Dew Heater Strip with Temperature Regulator, Condensation Prevention for Telescopes Camera DSLR Lens Telescope Eyepieces Less Than 3.15 inch (80mm) in Diameter - JJC Intervalometer Timer Remote Control Shutter Release for Canon EOS Rebel T6 T7 2000D 90D 80D 70D 77D T8i T7i T6i T6s SL3 SL2 T5i T4i EOS R R50V R6 Mark II R6 R7 R8 R10 RP R100 M6 Mark II M5 & More - Sky-Watcher Star Adventurer 2i Pro Pack – Motorized DSLR Night Sky Tracker Equatorial Mount for Portable Nightscapes, Time-Lapse and Panoramas – Wi-Fi App Camera Control – Long Exposure (S20512) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/494825938-usb-lens-warmer-lens-dew-heater-strip-with-temperature-regulator](https://www.desertcart.vn/products/494825938-usb-lens-warmer-lens-dew-heater-strip-with-temperature-regulator) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-18*