ULANZI CU01 Camera Cooler Kit for DSLR & Mirrorless - Active Cooling

In this review the ULANZI CU01 camera cooler kit is presented as a targeted accessory for photographers and videographers who need reliable temperature control during extended shoots. The kit pairs a semiconductor cooling module with a removable 3000mAh magnetic battery and a charging cable, and the single biggest reason to buy is its ability to keep a camera several degrees cooler under continuous recording without adding much bulk or a complex mounting routine.

Key Features

• Spring Buckle Install Design: The spring-loaded pop-up locking mechanism secures the cooler to most side-flipping screen cameras, giving a stable fit that prevents accidental slips during shooting.
• 3000mAh Rechargeable Battery: The replaceable magnetic battery provides portable power for prolonged outdoor recording and supports charging while the cooler is in use for continuous operation.
• Semiconductor Cooling System: Ceramic Peltier chips and a high-density aluminum alloy heatsink with a 6000RPM fan deliver rapid temperature drops to protect cameras during long 4K recording or high-performance bursts.
• Three-Speed and Auto Control: Manual low and high speeds plus an AUTO mode driven by an NTC sensor keep camera temperature regulated without constant user adjustments.
• Quiet Operation: Low-speed operation runs near 36dB for quiet shooting situations, while the higher settings increase cooling power for demanding sessions.

Who It's For

The CU01 is aimed at mirrorless and DSLR shooters who record long video takes or work in hot environments and need to prevent thermal throttling or overheating. It suits content creators doing outdoor live streaming, long exposures, timelapse, or 4K video where camera temperature can rise steadily during continuous use.

It is less appropriate for photographers who rarely record extended video or who require fully silent, battery-less operation; also buyers should know a charging adapter is not included and should use a recommended 5V 3A to 5V 5A charger for best results.

Pros & Cons

Pros

• Effective temperature control that keeps cameras noticeably cooler during continuous use.
• Secure spring buckle mount that fits side-flipping screen cameras and stays in place.
• Portable 3000mAh magnetic battery with support for charging while operating for extended sessions.
• Quiet low-speed operation suitable for many on-location shoots.

Cons

• Battery life draws mixed feedback from users, with some reporting it does not last as long as hoped on higher speeds.
• The kit omits a charging adapter, so buyers must supply a compatible 5V 3A-5A charger.

Specifications

Cooling type	Semiconductor Peltier with fan
Battery	3000mAh magnetic rechargeable (replaceable)
Fan speed	Up to 6000 RPM, three speeds plus AUTO
Noise level	Low ~36dB, high ~39.4dB
Power recommendation	Use 5V 3A, 5V 4A, or 5V 5A charger
Mount	Spring buckle pop-up lock for side-flipping screens

Our Verdict

The ULANZI CU01 is a pragmatic accessory for videographers and outdoor shooters who face overheating during long recordings; it combines robust semiconductor cooling, a convenient magnetic 3000mAh battery, and a secure spring-buckle mount at a sensible value. For anyone who regularly pushes cameras with extended 4K capture or streaming, it is a worthwhile investment provided they accept the need to supply a compatible charger and the tradeoff of limited battery runtime on high power.

Frequently Asked Questions

Does the kit include a charger?
No, the kit includes the cooler, a 3000mAh battery and a charging cable, but not a wall charging adapter.

Can it cool while plugged in?
Yes, the fan supports charging while in use so the cooler can run continuously if connected to an appropriate 5V 3A-5A power source.

Will it fit my camera?
The spring buckle design is compatible with most side-flipping screen cameras, providing a secure fit without blocking the screen.