Vixen Lens Heater 380-12V
Keep your telescope, camera lens or eyepiece crystal-clear – the Vixen Lens Heater 380-12V offers reliable protection against dew with 3 heat settings and up to 10 hours of use
- Maintains ideal lens temperature to prevent dew build-up
- 3-level power controller (also works as an on/off switch)
- Up to 10 hours of runtime on the lowest setting with a 10,000 mAh / 37 Wh USB power bank
- Fits tubes with a diameter of Ø 45–180 mm
- Quick and silent installation thanks to soft NCT heating element
- Flexible elastic heating band with hook-and-loop fastening, easy to attach and remove
- Dimensions: 30 x 800 mm / Weight: 69 g
Product number:
X035421
EAN:
4007922100340
WEEE-Reg.-Nr.:
DE 34323861
With BRESSER, you can enjoy a smooth introduction to the vast world of astronomy. Our detailed information ("Telescope Guide") provides valuable tips for beginners—but even experienced astronomers can use the information we provide (e.g., tables for the geographical latitude of all major world cities) as a reference.
Here is the table of contents of the comprehensive BRESSER Telescope Guide:
- 2. The View into the Starry Sky
- 2.1 Observing with the Naked Eye
- 2.1.1 Observing Constellations with the Naked Eye
- 2.2 Observing with Binoculars
- 2.2.1 Observing Planets and Moons with Binoculars
- 2.2.2 Observing Deep Sky Objects with Binoculars
- 2.2.3 Every Beginning is Easy
- 2.3 Observing with a Telescope
- 2.4 The Moon
- 2.4.1 The Moon Phases
- 2.4.2 The Far Side of the Moon
- 2.4.3 The Moon Map
- 2.4.4 Maria (Seas)
- 2.4.5 Mare
- 2.4.6 Craters
- 2.4.7 The Ray Craters
- 2.5 Observing the Solar System with a Telescope
- 2.5.1 Where are the Planets?
- 2.5.2 Planet Observation
- 2.5.3 The Position of the Planets Relative to the Sun
- 2.5.4 The Planets Introduce Themselves
- 2.5.5 Deep Sky Observation with a Telescope
- 2.6 Practical Observation Tips and Tricks
- 2.6.2 Tips for Optimal Observation Conditions
- 2.7 The Most Beautiful Objects Throughout the Year
- 4. Telescopes
- 4.1 The Telescope as an Observation Instrument
- 4.2 Optics
- 4.2.1 Refractor (Lens Telescope)
- 4.2.2 Reflector (Mirror Telescope)
- 4.3 Mechanics
- 4.3.1 Altazimuth Mount
- 4.3.2 Equatorial Mount
- 4.3.3 Drive Motors
- 4.4 Accessories
- 4.4.1 Eyepieces
- 4.4.2 Important Tips for Eyepiece Selection
- 4.4.3 Filters
- 4.4.4 Photographic Accessories
- 4.4.5 Other Accessories
- 5.1 Which Telescope for Whom?
- 5.1.1 Deep-Sky Observations
- 5.1.2 Observing Closer Planets
- 5.1.3 The Topic of Portability
- 5.1.4 Price Factor When Buying a Telescope
- 6. Useful Tables
- 6.1 Table for the Geographic Latitude of All Major World Cities
- 6.1.1 Observers in the Northern Hemisphere (N):
- 6.1.2 Observers in the Southern Hemisphere (S):
- 6.2 Lookup Table for Notable Stars
- 6.3 Getting Acquainted with the Universe - or: Distances in Space
Sky Guides by Bresser
The Sky Guide provides comprehensive information on constellations, planetary positions, and astronomical events – perfect for planning your observations and delving deeper into astronomy.
Visit the guide directly here to make the most of your observations!
Product information "Vixen Lens Heater 380-12V"
The Vixen Lens Heater 380-12V is designed to keep your telescope lens free from condensation – a frequent issue in astrophotography. Dew forms when the lens cools below the air temperature, causing moisture to settle on its surface. This heater prevents that by gently keeping the lens just warmer than the surrounding air.
An evolution of the trusted Vixen Lens Heater 360 IV, this model has been specially optimised for use with astronomical telescopes. Simply wrap it around the lens and secure with the integrated strap to ensure fog-free viewing – perfect for capturing sharp, clear astrophotographs.
Efficient and adjustable for longer sessions
With low energy consumption, the heater keeps your optics dew-free for extended periods. Paired with a 10,000 mAh battery, it can run for up to 10.3 hours on the lowest setting (measured at 20 °C; actual performance may vary depending on temperature, environment, and battery quality). The detachable controller lets you switch between three heat levels – High (6W), Mid (4.5W) and Low (3.6W) – at the push of a button. This energy-conscious design also helps minimise thermal impact on your lens’s optical performance. Alternatively, you can use the heater without the controller for a constant 6W output.
Versatile and user-friendly
The heater is compatible with lenses starting from 30 mm in length and outer diameters between Ø 45–180 mm – ideal for eyepieces, optical tubes and camera lenses. For lenses up to 140 mm in diameter, the 20 x 440 mm heating element wraps fully around the barrel for maximum effect.
It uses ultra-thin carbon nanotube technology for efficient, even heating. The outer material is soft, secure, and noise-free when applied or removed. A non-slip contact surface and a foldable finger hook with fastener ensure easy and reliable positioning – without shifting or slipping during use. The finger hook folds down neatly to avoid obstructing your view.
Smart design for practical use
The coiled cable offers added convenience – it won’t tug or cause your setup to tip if pulled accidentally. It can also be gently wrapped around smaller dew shields without resistance. This reduces image blur caused by cable movement in windy conditions. Power can be supplied via optional USB-PD power adapters (using the included PD12V trigger cable) or the integrated 2.1 mm DC plug. Compatible with USB-PD battery packs, the optional PD12V-3A mains adapter, and standard 12V power supplies (2.1 mm DC plug, 2.1 mm inner / 5.5 mm outer diameter, centre-positive). These flexible power options make the lens heater a must-have for every astrophotography session.
FEATURES
SCOPE OF DELIVERY
Efficient and adjustable for longer sessions
With low energy consumption, the heater keeps your optics dew-free for extended periods. Paired with a 10,000 mAh battery, it can run for up to 10.3 hours on the lowest setting (measured at 20 °C; actual performance may vary depending on temperature, environment, and battery quality). The detachable controller lets you switch between three heat levels – High (6W), Mid (4.5W) and Low (3.6W) – at the push of a button. This energy-conscious design also helps minimise thermal impact on your lens’s optical performance. Alternatively, you can use the heater without the controller for a constant 6W output.
Versatile and user-friendly
The heater is compatible with lenses starting from 30 mm in length and outer diameters between Ø 45–180 mm – ideal for eyepieces, optical tubes and camera lenses. For lenses up to 140 mm in diameter, the 20 x 440 mm heating element wraps fully around the barrel for maximum effect.
It uses ultra-thin carbon nanotube technology for efficient, even heating. The outer material is soft, secure, and noise-free when applied or removed. A non-slip contact surface and a foldable finger hook with fastener ensure easy and reliable positioning – without shifting or slipping during use. The finger hook folds down neatly to avoid obstructing your view.
Smart design for practical use
The coiled cable offers added convenience – it won’t tug or cause your setup to tip if pulled accidentally. It can also be gently wrapped around smaller dew shields without resistance. This reduces image blur caused by cable movement in windy conditions. Power can be supplied via optional USB-PD power adapters (using the included PD12V trigger cable) or the integrated 2.1 mm DC plug. Compatible with USB-PD battery packs, the optional PD12V-3A mains adapter, and standard 12V power supplies (2.1 mm DC plug, 2.1 mm inner / 5.5 mm outer diameter, centre-positive). These flexible power options make the lens heater a must-have for every astrophotography session.
FEATURES
- Heater type: Carbon nanotube heating element
- Heating element dimensions: 20 x 440 mm
- 3-level thermostat (OFF / High: 100% / Mid: 75% / Low: 60%), 300 mm long
- Heating capability: up to +35 °C above ambient temperature
- Power supply: via optional USB-PD adapters (PD12V trigger cable included) or 2.1 mm DC connector
- Power cable: 2.1 mm DC plug (inner diameter 2.1 mm, outer diameter 5.5 mm) – USB Type-C, 1,000 mm long + coiled section (200–500 mm)
- Power consumption: 12 V DC, 0.5 A, 6 W (max.)
- Approximate runtime with fully charged 10,000 mAh / 37 Wh USB power bank (at 20 °C):
- High (100%): approx. 6.1 hours
- Mid (75%): approx. 8.2 hours
- Low (60%): approx. 10.3 hours
- Compatible with lenses/telescopes: > 30 mm length & 45–180 mm diameter
- Dimensions: 30 x 800 mm (excluding connectors, controller, cables)
- Weight: approx. 95 g (heating band: 46 g, controller: 24 g, cable: 25 g)
SCOPE OF DELIVERY
- Lens Heater 360 IV
- USB coiled cable
- Controller
- Instruction manual
| Batteries required: | Yes |
|---|---|
| Colour: | grey |
| Field of application [Telescopes]: | Deep Sky Observation , Deep Sky Photography , Lunar observation , Lunar photography , Planetary observation , Planetary photography |
| Material: | Carbon nanotubes |
| Net Weight total (incl. accessories) (g): | 95 |
| Target Group [Telescopes]: | Advanced Amateurs , Beginners , Specialists and Research , Visual enthusiasts |
| Total length (mm): | 800 |
| Total width (mm): | 30 |
Product and safety instructions
Manufacturer:
Bresser GmbH, Gutenbergstraße 2, 46414 Rhede
Contact:
www.bresser.de
www.bresser.de
Warning notes
- General safety instructions DANGER Risk of suffocation! Improper use of this product can result in suffocation, especially for children. Therefore, carefully observe the following safety instructions. Keep packaging materials (plastic bags, rubber bands, etc.) away from children! There is a risk of suffocation! Keep cords, ribbons, and similar materials away from children! They could accidentally strangle themselves and suffocate! NOTE Risk of material damage! Improper handling can damage the device and/or accessories. Therefore, only use the device according to the following safety instructions. Do not dismantle the device! In the case of a defect, contact your dealer. They will contact the service center and may send the device in for repair.
- Never look at the sun through an eyepiece/telescope without a certified protection filter. A moon filter can never be used for solar observation. The moon filter is only suitable for moon observation. The solar filter must be mounted in front of the telescope opening, not at the eyepiece. Otherwise, the concentrated light beam through the optics will immediately destroy the filter foil, leading to severe eye damage, including permanent blindness.
- Never leave the optics unattended. Children and inexperienced adults could point the telescope at the sun without proper precautions and lose their eyesight.
- Do not expose the device to high temperatures.
