Applicable models are as follows:
For Nikon SB-900, SB-800, SB-600, SB-28, SB-27, SB-26, SB-25, SB-24
For Canon 580EX II, 580EX, 550EX, 540EZ, 520EZ, 430EX/EXII, 430EZ, 420EX, 420EZ, 380EX
For Pentax AF-540 FGZ, AF-360 FGZ, AF-400 FT, AF-240 FT
For Olympus FL-50, FL36
For Sigma EF-500 DG Super, EF-500 DG ST, EF-430
For Sunpak Car 2000DZ, 622 Pro, 433AF, 433D, 383, 355AFm 344D, 333D
For Yongnuo YN-460II YN-468 YN-560 YN-462 YN-465 YN-467