Ranvoo expands its catalog of personal comfort devices with the Ace Light Plus 2025, a cooling neck warmer designed for all seasons. This model features back airflow, a heating mode for winter, and intelligent AI control to provide even body cooling (or warming).
Positioned in a rapidly expanding market, the brand has refined its flagship model with several notable improvements: an 80% increase in fan speed, 24% better cooling, and 30% longer battery life thanks to a new energy-saving chip. After several weeks of testing in various weather conditions, here's what we actually observed during our tests.
Table of Contents
Design and ergonomics
The Ranvoo Ace Light Plus 2025's cooling neckband boasts a distinctive futuristic aesthetic with its matte white casing. This finish offers a significant advantage: the now matte black LED screen considerably reduces fingerprints, unlike the glossy surface of the 2024 model. The design incorporates soft silicone edges to prevent skin irritation during extended wear.
The most noticeable change concerns ventilation. The new model has significantly more air vents than the previous generation. There are eight ducts at the front (four on each side), complemented by two vertical vents and additional openings on the sides. At the rear, a wide intake slot maximizes airflow. According to the manufacturer, this design provides 80% more airflow.
The adjustable central hinge makes it easy to put on the device. The opening is generous, allowing you to slip the fan on with one hand, even for those with a large neck circumference (tested up to 31 cm). However, this hinge does present a point of concern: it can pinch the skin when closing if you're not careful.
Weighing in at 520 grams, the Ranvoo Ace Light Plus can hardly be called lightweight. This substantial weight is noticeable on the neck, especially during prolonged use while standing or sitting. After just 15 minutes of use, neck discomfort begins to develop. This limits its use during intense physical activities such as weightlifting or cycling. The device is better suited for static activities or those with limited mobility.
The flexible yet sturdy neck strap ensures a secure fit. The improved anti-detachment features work well during moderate movement. However, the device's bulk makes it difficult to pack in small bags. Users typically wear it around their neck while traveling.
An angled USB-C port is positioned on the side, allowing for charging while wearing the device without discomfort at chest level. This practical detail demonstrates thoughtful ergonomic design. The LED screen displays the remaining battery percentage as well as the active mode and its intensity level.
Cooling performance
The cooling system relies on two distinct yet complementary mechanisms. This architecture warrants clarification, as the term "portable air conditioner" can be misleading. Unlike a traditional air conditioner that cools the air before circulating it, the Ace Light Plus 2025 combines a conventional ventilation system with Peltier thermoelectric plates.
Our thermal measurements reveal tangible performance. In maximum cooling mode, the conductive aluminum plates reach their minimum temperature in less than two minutes. A cold spot becomes visible just 10 seconds after activation. At 30 seconds, the temperature drops to 25.4°C. After one minute, it reaches 23.5°C. The coldest point is reached at 1 minute 50 seconds with a temperature of 22.4°C, a decrease of 9.3°C compared to the initial temperature of 31.7°C.
The sensation of cold on the skin is immediate and pronounced. The manufacturer claims it can reach 13°C (56°F) in one second, a figure we were unable to verify precisely but which corresponds to our experience. Condensation forms on the plates during use in high heat and humidity, demonstrating the cooling efficiency.
The thermal contact surface covers 15,020 mm², one of the largest on the market according to Ranvoo. This extended area wraps around the neck and extends down onto the shoulders, creating a feeling of enveloping coolness rather than a simple localized cold spot.
The ventilation system generates an airflow measured at 2.9 meters per second for the 2025 model, compared to 2.3 m/s for the 2024 version. This 80% increase translates into a more pronounced breeze sensation. The air vents direct air upwards to the chin and cheeks, rather than across the entire face. Thermal images confirm reduced heat radiation in these areas after use.
A unique dorsal vent is a distinctive feature of the Ace Light Plus. Unlike competing models, this system directs cool air to the upper back. In practice, this function proves effective when skin is exposed, but its impact is significantly reduced under clothing. The concept remains relevant in hot weather when wearing light clothing.
The redesigned heat dissipation technology ensures instant cooling even on the hottest days, with no perceptible lag. The system maintains its power consistently, a significant advantage compared to entry-level models that struggle to manage accumulated heat.
One inherent limitation of portable fans becomes apparent: when the ambient temperature exceeds 35-38°C, the airflow becomes lukewarm or even hot, even with active cooling plates. Physics dictates its constraints. In these extreme conditions, only thermoelectric plates provide relief, as the fan loses its effectiveness.
Heating performance
The heating mode is surprisingly efficient, often underestimated by users focused on cooling capabilities. The conductive plates heat up rapidly. A visible hot spot appears in less than 10 seconds. After 30 seconds, the temperature reaches 39.2°C. The peak temperature occurs at 3 minutes and 26 seconds at 47.8°C, an increase of 16.5°C compared to the initial temperature.
This rapid and sustained temperature increase transforms the device into a true neck heating pad. Those who are sensitive to the cold or work in heavily air-conditioned environments will find it particularly beneficial. Our tests in a heavily air-conditioned café demonstrate that the heating mode maintains noticeable comfort for over two hours, whereas the cold would become unbearable within 30 minutes without the device.
The heat output remains constant for several minutes before experiencing periodic fluctuations. These fluctuations appear to be a safety mechanism preventing overheating rather than a design flaw. This thermal regulation protects the user from potential burns.
The hot compress mode, accessible via the app, optimizes the heating function for neck pain and muscle tension. This therapeutic use expands the range of applications beyond simple thermal comfort.
Intelligent interface and control
Ranvoo's Ace Light Plus 2025 offers two levels of interaction: physical controls on the device and control via the Metatura mobile app.
On the unit, a power button allows you to switch between the four main modes. A single press toggles between modes, each identified by a color code: green for fan only, blue for combined cooling, red for heating, and white for AI mode. A side-mounted speed control dial adjusts the intensity to three levels. The matte black LED display shows the active mode, the selected level, and the battery percentage.
This minimalist interface is intuitive to use. Even an elderly person or someone less comfortable with technology can operate the device without difficulty. Simplicity takes precedence over sophistication, a sensible choice for a consumer product.
The Metatura app significantly enhances the user experience. The Bluetooth connection is established quickly and reliably, without unexpected disconnections, unlike many other smart device apps. No user account is required, eliminating a common access barrier.
The software interface allows for precise temperature and fan speed adjustment via gradual sliders, offering greater control than the three physical levels. The silent mode reduces noise for nighttime use or in quiet environments such as libraries.
The AI mode is the most advanced feature. This system automatically adjusts the airflow and temperature according to the detected environment. During our tests of the Ranvoo Aice Lite Plus 2025 , the transitions between indoor and outdoor conditions were seamless. The unit reduces its power in temperate environments and increases it in hot or cold weather. This autonomous management optimizes comfort while preserving battery life.
The app also displays the ambient temperature, active settings, and offers preset modes such as "Emergency Cooling" for maximum cooling or "Low Power" to save battery. A built-in tutorial guides new users, although the interface is clear enough that it's not necessary.
Battery life and charging
The 6000 mAh aviation graphite battery offers above-average capacity for its segment. Ranvo advertises battery life as varying depending on usage, and our tests of the Ranvoo Aice Lite Plus 2025 confirm this wide range.
In fan-only mode, the battery lasts 15 hours and 11 minutes at minimum speed and 8 hours and 6 minutes at maximum power. These figures allow for a full day of use without recharging under moderate usage.
Cooling mode consumes more energy due to the activation of the thermoelectric plates. At minimum power, battery life is 7 hours and 13 minutes. At maximum power, it drops to 2 hours and 34 minutes. This latter figure limits intensive use without an external power source.
The heating mode shows intermediate power consumption, with 10 hours of autonomy at low intensity and 6 hours and 10 minutes at full power. These figures surpass those of the cooling mode, confirming that heating uses less battery power.
AI mode, by dynamically adjusting power, significantly extends battery life. In our tests under moderate weather conditions, a full day of use without recharging was achievable. This mode represents the best compromise between comfort and endurance.
Charging is done via USB-C with the included right-angle cable. The manufacturer advertises 15W charging, but our measurements indicate an actual power output of 10W. A full charge takes 2 hours and 46 minutes, 15 minutes less than the 3 hours stated on the official website. This performance is still acceptable for a battery of this capacity.
A major advantage: the device operates while charging. Connected to a portable power bank, the Ace Light Plus 2025 can run continuously at full power, transforming it into an unlimited portable personal air conditioning system. This capability proves invaluable during long outings or workdays outdoors.
Sound level
The noise level of the Ranvoo Aice Lite Plus 2025 varies depending on the selected mode and intensity. At minimum speed, the noise level remains discreet, suitable for public transport or an open-plan office environment. However, it exceeds the acceptable level in a library without the silent mode activated.
At medium and maximum speeds, the airflow becomes audible to those nearby. Wearing earphones or headphones effectively masks the noise for the user. Compared to a standard neck fan with equivalent performance, the Ace Light Plus 2025 offers an acoustic advantage: the cooling plates provide an additional cooling effect without increasing the noise level, whereas a conventional fan would have to spin faster to compensate.
The app's silent mode noticeably reduces noise. Nighttime use becomes feasible for those sensitive to heat, although the device's weight may be uncomfortable for some sleepers.
Connectivity and Compatibility Test of the Ace Lite Plus 2025
The Ace Light Plus 2025 uses Bluetooth to communicate with the Metatura app, available on iOS and Android. The connection range covers a standard room without dropouts. Unlike many consumer smart devices, the connection is stable and responsive.
The app requires no user account, a privacy-friendly choice that eliminates friction for adoption. Firmware updates are performed via the app, allowing for improved functionality and bug fixes.
The USB-C port ensures compatibility with modern chargers and external batteries. The 10W charging speed is modest compared to current standards, but sufficient for a device in this category.
Critical analysis and points for improvement
The Ace Light Plus 2025 features tangible improvements over the 2024 model. The measured performance gains (24% cooling capacity, 80% airflow, 30% battery life) translate into superior user comfort. The new energy-saving chip and Ice Triangle Pro 4.0 technology deliver on their promises.
Three weaknesses remain, however. The first concerns the white finish of the casing. While it provides a neat aesthetic indoors, this color gets dirty quickly during outdoor use, on construction sites, or in workshops. A blue version exists but comes with an unexplained price increase. An anthracite or black color would have been more resistant to everyday dirt.
The second drawback is the lack of an automatic shut-off. The Ice 3 model, released two years prior, included this convenient feature: the device switched off automatically once removed from the neck. This ergonomic regression forces the user to remember to manually turn off the device every time, risking unnecessary battery drain.
The third weakness concerns accessories. No carrying case is included with the device, whereas the Ice 3 did. This cost-cutting measure, likely justified by the more aggressive pricing, penalizes mobile users who want to protect their investment. The device's bulk makes this omission all the more regrettable.
Beyond these reservations, the positioning of the Ace Light Plus 2025 requires clarification. The term "portable air conditioner," used in some marketing communications, leads to a misunderstanding of the product. Temperature measurements of the air expelled by the fan show no significant difference between fan and cooling modes. The air is not cooled as in a traditional air conditioner. The two systems (fan and cooling plates) operate in parallel, not in synergy, to produce cold air. This technical distinction must remain clear to avoid disappointing buyers expecting a true portable air conditioning system.
The weight of 520 grams represents a real physical constraint. Over prolonged periods, the neck and trapezius muscles are strained. Individuals with neck problems or prone to cervical pain should assess their tolerance. This factor also limits its use in sports. The device is primarily intended for sedentary activities, walking, or motorized travel (car, motorcycle).
Value for money and positioning
The Ranvo Ace Light Plus 2025 is positioned in the premium segment of portable fans. On the official Ranvo website, the price is €178 after a 15% discount. On Amazon, the device is listed at €229. These price variations suggest comparing offers before purchasing.
At this price point, the Ace Light Plus 2025 faces competition from standard portable fans sold between €40 and €80, as well as more sophisticated systems offered by brands like Nitecore or Jisulife in similar price ranges. Its differentiation lies in its dual heating/cooling function, a rarity on the market, and its measured thermal performance.
Compared to a standard neck fan costing €60, is the price difference justified? For a user simply looking for a portable airflow, probably not. However, those sensitive to extreme temperatures (both heat and cold), those working in harsh air-conditioned environments or exposed outdoors, and users who value precise app control will find the Ranvoo Ace Light Plus 2025 offers a tangible benefit that justifies the extra cost.
Long-term durability remains to be assessed. Peltier thermoelectric plates generally have a good lifespan, but the increased electronic complexity compared to a simple fan introduces potential points of failure. Ranvo offers a 30-day return policy, allowing for a risk-free trial.
Recommended user profile
Ranvoo's Ace Light Plus 2025 cooling neck warmer caters to a variety of users. Outdoor workers (gardeners, construction workers, security guards) will benefit from the cooling effect during the summer months, although its white color and weight limit its suitability for intensive use. Those working in over-air-conditioned offices will find the heating mode a stylish solution to temperature fluctuations, more practical than layering clothing.
Motorcyclists and other two-wheeled vehicle users are a relevant target market. The device fits under a helmet and provides noticeable comfort during rides in hot or cold weather. The continuous charging function via an external battery extends battery life for long journeys.
Elderly people sensitive to temperature variations, women in menopause prone to hot flashes, or people suffering from pathologies affecting thermoregulation (hyperthyroidism, neuropathies) can find daily relief.
However, athletes engaged in intense activities will need to look for lighter and more compact solutions. The weight and bulk of the Ace Light Plus limit it to low-impact activities: walking, fishing, golf, and leisurely gardening.
✔ efficient heating/cooling
✔ Measurable thermal performance (drop of 9.3°C, rise of 16.5°C).
✔ Adaptive AI mode and optimized battery life.
✔ The Metatura app is reliable and intuitive..
✔ 6000 mAh battery offering good endurance.
✔ Distinctive dorsal airflow.
✔ Convenient angled USB-C port.
✔ Continuous charging possible with external battery.
✔ Tangible performance gains vs 2024 generation (+24% cooling, +80% speed, +30% battery life).
✔ Matte black anti-fingerprint LED screen.
✖ Weight of 520g, tiring for the neck.
✖ White finish that shows dirt easily in outdoor use.
✖ No automatic stop (regression vs Ice 3).
✖ No carrying case included.
✖ Bulky storage space.
✖ Intense sports use not recommended.
✖ Ventilation is ineffective above ambient temperatures of 35-38°C.
✖ Misleading "air conditioner" marketing (no cooled air, 2 separate systems).
✖ Actual charging at 10W (not the advertised 15W).
✖ Hinge can pinch the skin.
Ranvoo Ace Light Plus 2025 Verdict and Review
The Ranvoo Ace Light Plus 2025 significantly improves upon its predecessor's design. The measured performance gains ( 24% cooling, 80% speed, 30% battery life ) translate into superior user comfort . The dual heating/cooling function extends the product's usefulness throughout the year, whereas traditional fans are limited to warmer weather.
Thermoelectric plates deliver intense and rapid cooling , providing immediate relief during periods of intense heat. The heating mode is surprisingly efficient, transforming the device into a valuable winter accessory. The AI mode intelligently manages temperature transitions while optimizing battery life. The Metatura proves reliable and functional , without the usual pitfalls of consumer smart devices.
These qualities, however, are hampered by some practical limitations. The weight of 520 grams causes neck strain over extended periods and restricts its use for sports. The lack of an automatic shut-off and a carrying case represents a step backward compared to previous models from the brand. The white finish, while aesthetically pleasing, is not practical in dirty environments.
The value proposition depends primarily on the intended use. For a buyer looking for a simple portable fan, alternatives in the $60-$80 range will suffice. For a user regularly exposed to extreme temperatures, sensitive to both cold and heat, and who values personalized thermal comfort , the investment of $184 to $237 is justified. The heating function is a major differentiator.
The Ace Light Plus 2025 stands out as a high-performance, premium niche product , designed for specific users rather than the general public. Its thermal versatility and connected capabilities make it an effective companion for managing personal comfort in all seasons, provided one accepts its considerable size.
A high-performance, technologically advanced portable air conditioner/heater, ideal for managing personal comfort in all seasons, but whose price and weight make it suitable for a niche of demanding users.