Even Lighting with Circular Flash Tube Gives smooth, natural lighting with no harsh shadows. The circular shape makes reflections in fish eyes look natural and bright. The color matches sunlight (5600K), so photos look true-to-life with diffusers.Features Easy to read LCD screen 4 shooting modes: RC mode, DS-TTL mode, HSS mode, and Manual mode All-new battery cap design moves the sealing surface from the cap to the strobe body itself - minimizing the risk of water intrusion when opening or closing. 2-way battery charging can be powered by a high-energy lithium-ion battery pack or by versatile AA batteries (NiMH or alkaline).Product Specifications Flash Output 130 Ws Flash Modes Manual / DS-TTL / RC (OM Digital Solutions Certified) / HSS Manual Beam Angle 80 x 82 Degrees (w/o Diffuser) / 102 x 102 Degrees (w/Diffuser) Usable Batteries Li-ion (SB-L02) / AA Ni-MH / AA Alkaline Recycle Time (FULL) Li-ion : 0.8 sec / Ni-MH : 2.5 sec / Alkaline : 4.0 sec  Color Temperature 5600K (w/ or w/o Diffuser)    Depth Rating 100m Body Color Black Dimensions W98 x H110 x D157 mm  Weight on Land 715g Weight in Water w/ Li-ion : 30g / w/ Ni-HM : 50g (incl. strobe ball base) Accessories (Standard) AA Battery Holder, Diffuser, Red Filter,Strobe Ball Base, Silicon grease, Base Block Accessories (PRO Package) Li-ion Battery (SB-L02), Dual USB Charger (SC-L01D)