Support YONGNUO's new upgraded RF radio flash system It can receive control and trigger signal from TTL main unit such as YN862 series, YN560-TX PRO series, realizing TTL and M off-camera flash /multi mode; it could receive control and trigger signal from wireless flash trigger such as YN560-TX(II)/RF603/RF605 wireless flash trigger, realizing M/Multi mode flash. Using removable bare tube lamp tube, high index GN60 GN60 @ ISO100 (using the reflector cover). Support TTL flash, manual flash, multiple flash, high-speed sync, up to 1/8000 seconds. 16 channels, up to 10,000 configurable photographer IDs, six flash groups A/B/C/D/E/F. Equipped with a fixing bayonet, accessories such as the reflective cover can be installed. It is equipped with large capacity battery with imported cell, using Type-C interface charger, which supports fast charging with PD protocol power adapter (excluded). Support USB Firmware Upgrade Equipped with Micro USB interface, support firmware upgrade, users can connect to Yongnuo official website to download firmware upgrade package to upgrade. day the flash. Support wireless optical slave function. It can receive Yongnuo's main optical control signals, C/N, and supports S1 and S2 pre-flash triggering mode. Equipped with 3.5mm sync jack, support sync interface flash. Specifications Model: YN200 Flash output: 200W Guide No:60 @ ISO100 (using reflector) Color temperature: 5600k Power supply: 14.4V 2900mAh lithium battery Recycling time: about 0.01-2S Power adjustment: 1/1~ 1/64 Full Power Flashes: about 500 Trigger Mode: Radio Slave Mode (YN560), Optical Transmission Mode (SC/SN), S1, S2, Synchronous Interface Trigger Flash Mode: TTL.M.Multi Synchronous Interfaces : 3.5MM Upgrade Interface: Micro -USB Dimensions: about 205*78*53mm (without flash tube) Weight: about 540g (without battery and flash tube) Specifications: Type: 2.4G Speedlite transmitter on camera Control system exposure: E-TTL II/E-TTL auto flash, manual flash, multiple flash, Gr flash Channel: ch1-16 ID:0000-9999 Slave unit control: up to 5 groups (A/B/ C/D/E) Transmission Distance: Approx. 100m Flash ratio control: 1:8 - 1:1 - 8:1, 1/2-stop increments FEC flash: 3 stops in 1/3-stop increments High-speed sync: Provided Manual flash: Power of 1/1 to 1/128 (1/3 stop increments) Stroboscopic Flash: Supplied (1 - 500Hz) AF-Assist Beam Emitter: Supplied Firmware Update: Supplied Power Source: 2 AA Alkaline Batteries/ LR6 Ni-MH batteries Dimensions: Approx. 67.7x 66.7x 81.3mm Weight: Approx. 110g (only transmitter, without batteries) Contains items: YN200 speedlite (1), 200W Flash tube (1), YN-B2900 Li-ion battery (1), YN-C2900 charger (1), charging cable (1)