| Model | QT-U409 |
| Inch | 4'' |
| Voltage | DC5V |
| Power supply | 1.5W |
| Fan speed setting | One speed: 2500rpm |
| Timer | × |
| Remote controller | × |
| Power indicator light | × |
| Boby material | Plastic |
| Net weight (Kg) | 6.5 |
| Gross weight (Kg) | 8.0 |
| Unit size (L*H*W mm) | 95*120*175 |
| Giftbox size (L*H*W mm) | 156*103*195 |
| Quantity per master carton | 20 |
| Master carton size (L*H*W mm) | 535*325*410 |
| Loading quantity: 20' | 7940 |
| 40'FT | 15880 |
| 40'HQ | 18400 |
