Feature: 1. 6600mAh Rechargeable Battery: High performance rechargeable lithium ion battery, with s large capacity of 6600mAh, 0.01 to 2.8s fast recycling. 400Ws flash output, GN68, enough power for outdoor shooting. Ideal for shooting in bright or low light conditions. 2. 1/8000s High Speed Sync: When high speed sync is enabled, the flash and shutter sync speed up to 1/8000s. Solve the problem of photographic overexposure in outdoor strong light environment. 1/650 to 1/10000 second flash duration, accurate capture of high speed moving objects. 3. TTL Receiver: The flash has a built in TTL receiver function, which can be used with a camera equipped with a trigger to achieve TTL flash. Help you automatically adjust the flash output power. 4. Adjustment Range: When used in TTL flash mode, the exposure compensation range is ‑3.0 to +3.0EV, which can be increased or decreased by 1/3EV. The manual adjustment range of flash power is from 1/1 to 1/128 (8 aperture values), and it can be increased or decreased by 1/3EV. In strobe mode, the flash provides a series of fast flashes, which is the best solution to clearly record the movement of the subject in a picture, and is used to shoot special effects pictures. 5. LED Modeling Bulbs: This flash strobe uses advanced 13W LED modeling bulbs. The modeling bulb has 6 levels of dimming, which can be always on or off. 6. Built in 2.4GHz System: Using 2.4G wireless remote trigger system, with 8 independent channels and 30 radio identification codes. Under each channel, it can be divided into 3 groups.(Triggers are not included.) 7. Multiple Protection: Overheating, overcurrent, overvoltage, charging protection, to give the best performance care of the flash; support firmware upgrade. For Bowens mount design, support all kinds of accessories for Bowens. Specification: Item Type: Outdoor Flash Strobe Material: Plastic Gross Weight: 3450g / 121.7oz Battery Type: Lithium ion battery 6000mah (shipped with matching battery) Model: VISICO5 Output Power: 400W Guide Number: (2m, ISO100) 1/60 Standard lens SF 610: 68 Flash Power Output Range: 1/128-1/1 LED Modeling Bulb Power: 13W Color Temperature (in constant color temperature mode): 5600±200K Flash Duration (in non constant color temperature mode): 1/650-1/10000 seconds Flash Mode: TTL, M, Multi Strobe Flash: 20 times of strobe; 30Hz strobe frequency Flash Exposure Compensation (FEC): ±3 stops in 1/3 stop increments (in TTL mode) Sync Mode: High speed sync (up to 1/8000s), front curtain sync, rear curtain sync 2.4G Wireless Channel: channel 1-8 Wireless Radio Identification Number: 1 - 30 Controllable Slave Unit Groups: A, B, C three groups Synchronization Trigger Method: 3.5mm synchronization line, 2.4G wireless remote control VC 818TX (sold separately) Fan: Yes Buzzer: Yes Battery Level Indicator: Yes Full Power Flash Times: 500 times Full Power Recycling Time: 0.01-2.8s seconds External Interface: PC port, USB port How to Use VISICO5 with Other Flashes 1. VISICO5 is paired with other VISICO flash units (VCHHLR, VCHH, VE PLUS, VL PLUS): use the same VC 801TX trigger to achieve flash triggering and power adjustment. 2. VISICO5 is matched with other VISICO flash units (VCHHLR, VCHH, VE PLUS, VL PLUS): use the VC 818TX trigger and connect the VC 818RX receiver to other VISICO flash units to achieve flash triggering and power adjustment. 3. VISICO5 can be matched with VISICO camera flash, using the camera flash as the main light or using the VC 818TX trigger to achieve flash triggering and power adjustment. 4. Use VISICO5 with other brands of flash or camera flash with TTL multi contact hot shoe: use the matching VC 818TX trigger, and connect the VC 818RX receiver to other brands of flash or camera flash, Flash triggering and power adjustment are implemented together (Matched separately for 2 different brands of cameras).5. VISICO5 is paired with other brands of single contact or flash or camera flashes triggered by connecting cables: using VC 818TX trigger and VC 818RX receiver can achieve flash triggering together. . Package List: 1 x Flash1 x Lithium Battery1 x Charger1 x Charging Cable1 x Standard Lampshade1 x Protective Cover1 x Soft Cloth1 x 4m Sync Line1 x English Manual Note: A. The model of the trigger used with VISICO5 is VC 818TX. VC 818TX can be used as master control unit to control VISICO5 slave flash. In order to trigger the flash effectively, VISICO5 and VC 818TX need to be set to the same channel and ID. When adjusting the flash mode and various parameters of the flash, it is also necessary to set the VISICO5 flash and VC 818TX to the same group. (Triggers are not included and require additional purchase) B. Battery Charging and Maintenance: 1. When charging, the red indicator light is on, and the green indicator light is on after charging is completed. Empty battery fully charged time is 5H 2. When using the battery for the first time, fully charge the battery first