The dc fan has a linear 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, over current and voltage self-protection, auto-start.
The specification is as following.
| Model | Rated Voltage | Operation Voltage | Rated Current | Rated Speed | Air Speed | Static Pressure | Noise | BeringSystem |
| (V) | (V) | (A) | (RPM) | (CFM) | (mmH2O) | (dBA) | ||
| YHWF-4010L | 12 | 10.2 ~ 13.8 | 0.08 | 5000 | 4.97 | 1.79 | 23 | Sleeve |
| YHWF-4010M | 0.09 | 6000 | 5.43 | 2.12 | 24 | Sleeve | ||
| YHWF-4010H | 0.1 | 7000 | 6.2 | 2.55 | 26 | Sleeve |
We can develop this Cooling fan if the user requires the non-standard specification.