... to make sure every unit with power ,without low voltage, without bad led indicator, low ripple, good appearance, with right cables, etc4. Full ... etc5. Finished products full inspection: to make sure every unit with power, no high voltage, no low voltage, no bad led ... II standard. To guarantee every unit in good quality before arrive at our customers. 15W 5v 9v 12v 24V switching ac/dc power adapters