Ulanzi CU01 Thermostatic Camera Cooler for 4K

Stable 4K Recording Without Overheating

The Ulanzi CU01 Thermostatic Semiconductor Camera Cooler is designed to keep your mirrorless or DSLR camera at a controlled temperature during long 4K and high‑bitrate recording sessions. Using an intelligent thermostatic system and a high‑efficiency semiconductor cooling chip, it helps reduce sensor and body heat so you can record longer with consistent image quality.

Constructed from aluminum alloy, plastic, silicone and copper, the CU01 combines a magnetic heat dissipation shell, high‑density 6063 aluminum alloy heat sink fins, a 5000 RPM cooling fan and a thermal silicone pad to transfer heat away from your camera quickly and efficiently. The spring‑mount design accommodates camera widths from 74 mm to 94.5 mm, providing a secure, non‑intrusive fit for popular models from Sony, Canon, Nikon, FUJIFILM and LUMIX. Despite its solid build, the cooler remains compact at 94.4 × 53.2 × 25.5 mm and is designed to add minimal bulk while maintaining comfortable handling.

The integrated control system offers three operating modes, including an AUTO mode with approximately 8°C intelligent temperature control, allowing the cooler to adjust performance based on real‑time thermal conditions. Real‑time monitoring helps you track operating status at a glance. Power is supplied via a dedicated battery pack (3000 mAh, Type‑C charging, approximate 2‑hour charge time) or through wired Type‑C input, enabling charging while in use. Depending on the selected level, you can expect up to about 85 minutes (Level 1), 70 minutes (Level 2) or 65 minutes (AUTO) of operation on battery power, making it suitable for extended shoots, interviews, events and outdoor work.

The cooler kit is available in two configurations. The version with battery includes the CU01 cooler, battery, Type‑C charging cable and user manual. The version without battery includes the CU01 cooler, Type‑C charging cable and user manual. This flexibility allows you to match the kit to your existing power setup and workflow.

Why It's a Smart Choice

• Maintains more stable camera temperatures during long 4K and high‑bitrate recording sessions.
• Three operating modes with thermostatic control and real‑time monitoring for precise, reliable cooling.
• Compact, spring‑mount design fits a wide range of Sony, Canon, Nikon, FUJIFILM and LUMIX cameras without obstructing operation.

FAQ

Q: Which cameras are compatible with the Ulanzi CU01?
A: The CU01 is designed for mirrorless and DSLR cameras from major brands such as Sony, Canon, Nikon, FUJIFILM and LUMIX within the supported width range of 74-94.5 mm. Always check your camera's dimensions and layout to confirm clearance for mounting.

Q: Can I power the cooler while recording?
A: Yes. The CU01 supports wired Type‑C power input, allowing you to power or charge it while recording. When using the dedicated battery pack, you can also record while the cooler is running, subject to the stated battery life per level.

Q: Will the fan noise affect my audio?
A: The cooler is engineered for efficient, low‑profile operation. For critical audio, it is recommended to use external microphones placed away from the fan and to test your specific setup to confirm acceptable noise levels.

Q: Does installation require tools?
A: No. The spring‑mount design and magnetic heat dissipation shell allow for fast, tool‑free installation and removal, so you can attach or detach the cooler quickly between setups.