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GR45 45-Degree G-Mount Standard Reflector for KNOWLED MG1200Bi and MG2400Bi



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The Godox GR45 30° G-Mount Reflector Light Photography is designed for use with the Godox MG1200Bi and MG2400Bi Thanks to its narrower beam angle of 45°, it throws light over longer distances, ideal for illuminating a small area of a large set. Unlike using a Standard Spill-Kill reflector with a 45° honeycomb grid, (which absorbs some of the light), this reflector focuses the light, increasing its effective light output and reach. The Knowled GR45 is great for large film, television, and theatrical productions.

Godox GR45 G-Mount Reflector Light Photography with 45° Beam Angle

If you have ever needed a tight beam of light previously, you would generally use a standard reflector in conjunction with a honeycomb grid. The disadvantage of using a grid is that you lose a bit of light, compared to using the reflector by itself. The  45 ° G-Mount Reflector naturally produces a 45° beam of light, which negates the need for a grid, so you don’t have to worry about losing any light output.

Reflective Faceted Interior

The Godox 45° Long-Focus Spot Reflector Light Photography features a highly reflective Faceted Silver Interior, designed to maximise light output efficiency.

Godox GR45 45° Reflector Light Photography with G-Mount fitting

The  45° G-Mount Reflector Light Photography uses the new Godox G-Mount, which provides a larger, and more durable connection compared to the standard Bowens S-Type mount. It also features electronic contacts, which lets the light what modifier is being connected to it. This enables the light to intelligently compensate for any slight colour shifts caused by the modifier, for consistent lighting no matter what modifier is being used.

The GODOX KNOWLED GR45 Reflector Light Photography is an essential modifier for owners of the KNOWLED MG1200Bi and MG2400Bi Lighting system who want a narrow beam of light or to throw the light over a greater distance.


Photometrics for MG1200Bi with GR45 Standard Reflector.

CCT Unit 3m 5m 7m 9m
2800K lux 22,300 7,890 4,210 2,230
fc 2,080 733 391 207
3200K lux 24,400 8,690 4,610 2,440
fc 2,270 807 428 227
4300K lux 27,800 10,000 5,350 2,780
fc 2,580 929 497 258
5600K lux 21,900 10,500 5,530 2,910
fc 2,700 975 514 270
6500K lux 28,700 10,400 5,460 2,870
fc 2,670 537 305 165


  • Replacement Standard Reflector for the Godox MG1200Bi
  • Features the Intelligent Godox G-Mount

What’s In the Box

  • 1x KNOWLED GR45 Reflector.


Beam Angle45°
Interior ColourSilver
FittingGodox G-Mount
Box Weight

Box Dimensions

Approximately    Height  17cm  Width  25cm Length   25cm


Delivery & Returns

UK Delivery Rates

Free UK Standard delivery on orders over £150.00*

Order Date (if received before 3pm) Cost Latest Expected Delivery Date
UK Standard Delivery (Orders over £150*)  FREE 2-4 Days
UK Standard Delivery £3.99 2-4 Days
UK Express Delivery £5.99 1-3 Days
UK Next Working Day £8.00 Next Working Day
UK Next Working Day (Guaranteed) £15 Next Working Day
UK Before 2pm Next Working Day £18.00 Before 2pm Next Working Day
UK Saturday Delivery £30.00 Saturday
UK Sunday Delivery £30.00 Sunday

View a full breakdown


EssentialPhoto is committed to the provision of quality and reliable products and outstanding customer service. Buyers are entitled to cancel the order and return the goods within 28 working days for a full refund of the purchase price of the goods.

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International Delivery Rates

We are able to ship from our UK based warehouses to many countries around the world. Click below to check shipping rates to your country...

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