DC Stand Rechargeable for TV Powered with Panel and Outdoor Household Support Fanindoor Battery AC Home Electric 7.4V Solar Fan. Solar Rechargeable Power: Operates via solar panel or DC12V battery for outdoor and indoor use. Adjustable Speed Settings: Features 3 distinct speed settings to control airflow intensity. Dual Voltage Compatibility: Supports 220V/110V AC and DC12V for versatile power sources. Adjustable Height Design: Stand height is adjustable up to 1.25M for flexible positioning. Durable Blade Construction: Equipped with 3 or 5 PP/AS blades for efficient ventilation. 6-Month Warranty Coverage: Includes 6 months warranty for mechanical defects and support. High Efficiency Motor: RPM 1250 with temperature rise under 80K for stable performance. Portable Power Bank Function: Serves as a portable ventilation unit with charging capabilities.