Key Specifications & Features.
- Blade Size: 12 inches (approximately 300 mm) dynamic 3-blade or 5-blade structural design engineered for silent, high-velocity air delivery.
- Power Source: Dual AC/DC operation. It runs directly on normal household AC power (220\text{V–}240\text{V}, 50\text{Hz}) while simultaneously charging the internal battery.
- Battery System: Typically powered by a built-in 6\text{V} or 12\text{V} Sealed Lead-Acid (SLA) rechargeable battery or an upgraded Lithium-ion pack, featuring integrated overcharge and deep-discharge protection circuitry.
Operation Backup Time:
- High Speed: ~2.5 to 3.5 hours
- Low/Eco Speed: Up to 6 to 8 hours
Speed Settings: Multi-stage adjustment (typically Low, Medium, High).
Additional Utilities: Night Light: Built-in energy-saving LED array or small spotlight for emergency room illumination.
USB Charging Port: Integrated 5\text{V} USB output port allowing the fan to act as a power bank to charge mobile phones during blackouts.
Oscillation: 90-degree horizontal oscillation option with a manual vertical tilt head to direct airflow.
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