The GratKit 3D Filament Dryer Box Firefly V2.0 is a versatile and efficient tool for any 3D printing enthusiast. With its Tuya App compatibility, users can remotely control and monitor the drying process, ensuring optimal conditions for various filaments like PLA, PETG, TPU, ABS, and Nylon.

One of the standout features is its air heating circulation system, which includes a built-in fan and temperature sensors on both the top and bottom. This ensures even drying and significantly improves print quality by reducing issues like clogging and stringing caused by moisture.

The dryer can reach temperatures up to 70℃, making it suitable for almost all types of filaments. The hanging spool design reduces friction during printing and prevents the spool from melting at high temperatures.

Users have praised the quiet operation of the 5015 fan and the added convenience of RGB LED lights, which add a fun touch to the printing setup. The Firefly V2.0 also includes new features like mute sound and screen-off functions, enhancing user experience.

However, some users noted that the exterior plastic feels flimsy and the manual could be more helpful. Despite these minor drawbacks, the overall performance and functionality of the GratKit Filament Dryer make it a valuable addition to any 3D printing workspace.