Ring Fill Flash for SLR Camera

Product information:

Type: Ring Macro Flash
Applicable models: Nikon, Olympus
Flash type: professional flash

Flash index: 15
Effective flash range: 5cm-1.5m
Color temperature: 3000-15000k
Exposure time: 1 / 100 second
Power supply: 4 AA batteries, lamp itself does not have batteries, need to buy separately.