DC cooling fan, a close relationship between voltage and adjustable speed. It is widely used in computer and home electric appliance due to its accurate speed adjustment, high power, low noise and low vibration.
The specification is as following.
| Model | Rated Voltage | Operation Voltage | Rated Current | Rated Speed | Air Speed | Static Pressure | Noise | BeringSystem |
| (V) | (V) | (mA) | (RPM) | (CFM) | (mmH2O) | (dBA) | ||
| YHWF-0309L | 12 | 10.2~13.8 | 1000 | 6000 | 80 | 4.32 | 38 | Two Ball |
| YHWF-0309H | 12 | 1100 | 6500 | 85 | 4.8 | 42 | Two Ball | |
| YHWF-0309M | 24 | 1200 | 5500 | 78.2 | 6 | 48 | Two Ball |
We can develop this crossflow fan if the user requires the non-standard specifcation.