Double-sided grill net for safety and security. The two fans can be bundled together via Y-cables or separated and powered through a wall-mounted power supply.
High quality Dual Ball Bearings.
Suitable for long-term work.
Long life: 50,000 Hours.
Input : AC 100V-240V 50/60Hz
Output: DC 3V - 12V (adjustable) - 3A
The Speed controller uses ac and puts out dc 3 to 12 volts. Balance between high air volume and low noise.