Woltu Kompressor Kühlbox 30L
The WOLTU 30L compressor cooler: dual refrigerated zone, remote control via app, and all-terrain wheels for genuine nomadic use.
Key features
- Capacity: 30 litres (also available in 40L and 50L)
- Type: Compressor, Bluetooth app control
- Power supply: 12V / 24V DC
- Removable dual zone, all-terrain wheels, remote app control
In detail: WOLTU 30L compressor cooler with app control
This WOLTU compressor cooler differs from the brand's standard thermoelectric models with a genuine refrigeration circuit, able to drop as low as -20°C regardless of outside temperature. Available in 30, 40 or 50 litres depending on needs, it is organised into two distinct zones separated by a removable partition, letting you combine a very cold compartment for frozen goods with a milder compartment for drinks or fresh produce.
Its main distinguishing feature is control via a dedicated Bluetooth app, letting you remotely monitor the current temperature, the operating mode (ECO or MAX) and the connected battery's charge level, without having to open the lid or check a physical display. MAX mode allows a fast temperature drop when loading in produce at room temperature, at the cost of higher power draw than steady-state operation.
At 19.2 kg and 70.8 x 38 x 39.5 cm, it's fitted with all-terrain wheels with a 30° anti-shake system and a telescopic handle, designed for moving over rough ground during camping or off-road activities. Power supply runs on 12V or 24V DC via a 2.5-metre cable.
For vanlifers, campers or 4x4 enthusiasts after a connected compressor cooler with genuine remote management and a transportable format despite its weight, this WOLTU is an interesting alternative to more established market references.
Technical data
Detailed characteristics
Performance
| Type?General technical category the unit belongs to (passive, thermoelectric, compressor...). | Compressor, MAX mode for a fast temperature drop |
|---|---|
| Temperature?Temperature range the unit can be set to. | Adjustable from -20°C to +20°C |
| Power consumption?Electrical power drawn by the unit while running, expressed in watts (W). | 60W in MAX mode, under 1 kWh/day |
| Noise level?Noise emitted by the unit, in decibels (dB(A)), mainly relevant for compressor coolers. | Under 50 dB |
| Energy class?European energy efficiency class, from A+++ (most efficient) to G. | C/D (ERP standard) |
Dimensions and power supply
| Capacity?Usable storage volume of the cooler, in litres. | 30 litres (up to 38 x 330ml cans or 18 x 550ml bottles) |
|---|---|
| Power supply?How the unit is powered (12V, 230V, or none for a passive cooler). | 12V / 24V DC, 2.5 m cable |
| Weight?The unit's empty weight. | 19.2 kg |
| Outer dimensions?Width, depth and height of the unit (W x D x H), inside and/or outside depending on the line. | 70.8 x 38 x 39.5 cm (width x depth x height) |
| Material?Main material used to make the casing. | Aluminium and PE plastic |
Additional information
| Connectivity | Control via dedicated app (temperature, mode, battery level) |
|---|---|
| Features | Dual zone separated by removable partition, 30° anti-shake all-terrain wheels, telescopic handle |
How much does this cool box really use?
Comparison
In the portable compressor cooler segment around 30 to 40 litres with connected features, this WOLTU is naturally compared with the EZA BLIZZ-E F40, another model with app control, in searches such as "connected compressor cooler comparison". Here's how the two compare, based on both manufacturers' public specifications.
| Criterion | WOLTU 30L | EZA BLIZZ-E F40 |
|---|---|---|
| Format | Portable with wheels | Fixed built-in |
| Connectivity | Bluetooth app | Bluetooth app (Blizz-E) |
| Zones | 2 removable zones | 1 zone + freezer compartment |
| Weight | 19.2 kg | 15 kg |
| Price observed | ≈€220 (30L) | ≈€369 |
In short, the WOLTU relies on mobility with its all-terrain wheels and removable dual zone for nomadic use such as camping or off-roading, while the EZA BLIZZ-E F40 targets a fixed installation in a van. Both share the advantage of remote app control.
Our tester's verdict: Gilles Caron
I took it along for three days of wild camping in a 4x4, mainly wanting to test the dual-zone system and the app. The removable divider between the two compartments proved handy for keeping frozen goods well below 0°C on one side and just-chilled drinks on the other, without having to pick one setting over the other. The app works well over Bluetooth at close range, a genuine convenience for checking temperature and battery level without getting up from the hammock. The all-terrain wheels and telescopic handle made a real difference on a rocky track, where a standard cooler would have had to be carried by hand. At 19.2 kg empty, it stays heavy to carry without the wheels, worth planning for if the ground isn't suited to pulling it. MAX mode draws noticeably more than a standard ECO mode, worth watching on a small solar setup. For nomadic use with genuine remote-management comfort, it remains convincing.
Frequently asked questions: WOLTU 30L compressor cooler with app control
Control runs over direct Bluetooth between the smartphone and the cooler, without needing an internet connection, but with a range limited to the unit's immediate vicinity.
Yes, the removable partition physically separates the two compartments, each of which can be set to a different temperature within the unit's overall -20°C to +20°C range.
The all-terrain wheels with a 30° anti-shake system are designed for rough ground such as campsites or beaches, but remain less suited to very soft sand or stairs.
MAX mode speeds up the compressor for a fast temperature drop when loading in produce at room temperature, at the cost of higher power draw than ECO mode used to maintain a stable temperature.
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Page published on 3 August 2026