VEL AC-DC Power Supplies XP Power VEL AC-DC Power Supplies are wall plug adapters that comply with Level VI energy efficiency standards with <,0.1W or 75mW no-load power consumption and a standard jack plug connector. The VEL05 series also offers multiple USB options. XP Power VEL adapters feature fixed mains connectors, universal input, Class II construction, and a 0°C to +60°C operating temperature range. These devices are available in 5W, 12W, 18W, 24W, or 36W with 3000VAC input-to-output isolation.