High-Efficiency 21V DC Power Adapter – Reliable Charging for 2023 Best Sellers
Premium-grade materials with fireproof ABS casing and reinforced copper wiring for superior durability and heat dissipation. Precision-engineered circuit design ensures stable 21V output (1A/1.2A adjustable) with ±2% voltage fluctuation, compatible with 15W-33W devices. Ideal for powering cordless tools, LED displays, medical equipment, and IoT devices. Features short-circuit/overload protection and silent operation (≤25dB). Compact, lightweight design (100g) with detachable plugs for global voltage compatibility (100-240V). Bulk pricing available – wholesale orders ship same-day with DDP logistics support. UL/FCC/CE certified for industrial and household use.