Yin Yan BY-28ZP Flash light is suitable for CANON, Nikon, Sigma, Olympus and Pentax, with universal hot shoe

Guide Number(m): 26 (ISO100, 50mm Lens focus)
Coverage angle:  35～50～85mm Lens focus
Recycle Time(sec): 6～8 ( new set of alkaline batteries)
Flash duration(sec.):  approx. 1/1000
Color Temperature(K): approx. 5600
Flash times:  ≥200 (A set of new alkaline batteries)
Triggering method:  Low voltage trigger
Power source: 4 AA batteries (NiCd and NiMH) chargeable batteries can be used)
Dimension (mm):  170×70×50
Weight (g):  180(Exclude battery)