AC / DC power supply:
filtered voltage rectifier Daitron Inc

Daitron Ultra Low Noise AC/DC Power Supply HFS50 series can provide 50W at 5/12/24/36/48Vout options available.
In a small foot print and ultra low noise features are suitable for high end application in industry.

HFS series also has 30W type. (HFS30)

See product overview below link;

http://www.daitron.com/original_daitron/catalogs/Ultra_Low_Noise_Power_Supply_Daitron_Dec08.pdf

More specifications...