switching power adapter 1.Power Interchangeable adapter 2.fixed frequency ... usb chargers, phone chargers, adapters, ac/dc adapters, power adapters, wall mounted switching adapters, etc. We have ... can offer OEM service for customers.Product characteristics: Power Interchangeable adapter, fixed frequency control circuit, apply to ... : 5 to 95% RH Burn-in test: 80 to 100% at load 40 ±5 degrees Safety ...