Features: PLEASE NOTE: only supports M, Multi, 2.4G wireless remote; DO NOT support TTL, HSS Mode; Extremely short flash duration: from 1/1000 to 1/10000 seconds. 6 steps of power adjustment( 1/64 to 1/1) Large capacity lithium battery pack to provide 1000 Full Power flashes and fast recycle time( 0.4-2.5s) 13W energy-saving LED Modeling lamp. Stable color temperature at 5600200K over the entire power range Extremely short flash duration: from 1/1000 to 1/10000 seconds. 6 steps of power adjustment( 1/64 to 1/1) Built-in 2.4G Receiver with 8 Channels. Trigger included. USB firmware upgrade helps keep pace with the latest technology. 1-Year Neewer Warranty and lifetime email support Description: Sturdy and Durable with metal casing, esthetic structure. Provide More Dynamic Effect with Bowens Adapter, 1/4" Tripod Head adapter and Umbrella Hole. Can flash more than 1000 times at full power with built-in Replaceable Lithium Battery to meet the long-time photography demand. Adopts Environmental Friendly LED Modeling Lamp with higher luminous efficiency, less power consumption, longer service life compared with the traditional halogen modeling lamp. Specification: Guide Number: GN60 (2m, ISO 100) Power Output (Max.): 300W Power Output Range: 6 f-stop range (1/1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64) Recycling Time: Approx. 0.4-2.5s Full Power Flashes: 1000 shots Flash Duration: 1/1000s-1/10000s Successive Flashes: 3 shots; 5 shots; 7 shots; 10 shots; 12 shots; 15 shots Color Temperature: 5600200k 2.4G Wireless: 16 Channels (1-16); 4 Groups (A,B,C,D) Modeling Lamp: LED 13W, 1370 Lumen (Energy Saving) Flash Tube: "Plug-in" tube (user replaceable) Flash Light Dimension: 125mm(diameter) x 220mm (length) Flash Light Weight: 1.8 kilograms Battery Capacity: 7800mAH, 10.8V Charging Voltage: AC 220-240V, DC 12V Flash Light Protection Function: Overheat protection; Low voltage automatic power cut-off system Wireless Trigger: Effective Trigger Distance: Around 15m Power Supply: CR2 3V Battery (Included) Package Contents: 1 x Neewer Vision4 Studio Flash 1 x Lithium Battery (Included in the flash) 1 x LED modeling Lamp (Included in the flash) 1 x 100-120V AC Charger 1 x Standard Reflector 1 x Protective Cover 1 x 4-meter 3.5mm Sync Cord 1 x Wireless Trigger(Battery Included)