Constant Voltage

Keystone Technologies KTLD-60-UV-12V-DP Emergency Battery Backup, 120 to 277 V AC Input, 12 VDC Output

Advance Xitanium LEDINTA2000C24DOM 7-Wire Dimmable Linear LED Driver, 120 to 277 V AC Input, 12 to 24 VDC Output, 48 W, 4 in L x 1.18 in W