Compatibility: This lens is only compatible with fixed focal length L-series lenses 135mm and over, as well as the EF 70-200/2.8L, EF 70-200/2.8L IS, EF 70-200/4L, and EF 100-400/4.5-5.6L.
Specification: Input Voltage :
110 V AC
220 V AC
Output Voltage: 12 V DC
Maximum Output Current: 4.16 A
Maximum Output Power: 50 Watts
Frequency:
50Hz
60Hz