Medical ac-dc power supplies deliver 450-500W

TRUMPOWER Tumbler Technologies TMC500F series is capable of delivering 450-500W of continuous output power at 30CFM forced air or 250W at convection cooling, to its ac-dc switching power supply line-up. Product series is suitable for use in home health care applications, having BF rated class II construction with 2 MOPP and touch current measuring less than 100µA at 264VAC, 63Hz. Products are packaged in a 7.07” (L) x 3.98” (W) x 1.48” (H) size in a pcb form factor and is also available in U-bracket and enclosed form factors. 

click here for more info