NEEWER NW645II-C TTL Flash Speedlite For Canon Cameras

The product discount will be automatically applied once you add it to the cart.
SKU: 66601933


All Neewer products carry a 2-Year Warranty and 45-day Return. Learn more at Warranty Policy.

Shipping Policy

Shipping from local warehouse based on your area, normally it takes 2~10 days for the delivery, Learn more at Shipping Policy.

Firmware & Manual

To download the product firmware or manual, please visit our Download Center.


  • Upgraded Multifunctional Speedlite- NW645II-C Speedlite supports TTL, HSS (high-speed sync) up to 1/8000s, optical slave mode, stroboscopic flashes, rear curtain sync, and other features. A high guide number (GN58, ISO100m) allows lighting from a longer distance. A clear LCD screen displays all the information you need for precise settings
  • Premium Flash Output- Flash output is adjustable from 1 to 1/128 in 1/3 increments according to the actual ambient light. 0.1–3.5s short recycle time and 1/300-1/20000s flash duration let you capture every moment. Stable 5600K daylight delivers a consistent color temperature to all shots
  • Optical Slave Control- NW645II-C is compatible with original master flash units and can be activated by them when set on the same channel. It also supports S1 & S2 modes, where it can be triggered when the master units are in the manual mode and TTL mode
  • Flexible Bounce Angles- The flash head can swivel up and down between -7° and 90° and rotate 270° to bounce the light off a wall and help you get natural photographs with fewer shadows. The diffusers and reflector create a broad and diffused output with less harsh shadows
  • Compatible Models- Compatible with Canon EOS R6 R5 R3 R M6 850D 800D/T7i 760D/T6s 750D/T6i 650D 600D 7D Mark II 7D 6D Mark II 6D 5D Mark IV/III/II 1D Mark III 1DX 550D 500D 450D 90D 80D 70D 60D 50D 1100D 77D SL3/250D T7/1500D 2000D T100/3000D 4000D(NOT compatible with RP R50) 


  • Model: NW645II-C
  • Guide Number: GN58 (ISO 100, 180mm)
  • Controllable Slave Groups: ABC
  • Flash Coverage: Auto zoom, 24 - 180mm manual zoom, tilting flash head
  • Flash Mode: TTL, manual, stroboscopic
  • Sync Method: High speed sync (HSS, up to 1/8000s), front curtain, rear curtain
  • Sync Triggering Mode: Hot shoe, S1/S2, optical command
  • Wireless Flash Distance: 66’–98’ / 20–30m (indoor), 33’–49’ / 10–15m (outdoor)
  • Bounce Angles: -7° - 90° (vertical), -90° - 180° (horizontal)
  • Number of Full Power Flash: 230
  • Flash Duration: 1/300– 1/20000s
  • Recycling Time: 0.1–3.5s
  • Color Temperature: 5600K±200K
  • Flash Control: 1/128–1, in 1/3 increments
  • 0-30m Near-range mode/1-100m Long-range mode
  • External Interface: Hot shoe, PC sync jack, external charging port
  • Battery Type: 4 x AA alkaline/NiMH battery
  • Dimensions: 8" x 3" x 2.4" / 203 x 76 x 61mm
  • Weight: 14.1oz / 400g

Package Contents

  • 1 x NW645II-C Speedlite
  • 1 x Mini Stand
  • 1 x Diffuser
  • 1 x Protective Case
  • 1 x Manual