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KNOWLED F400Bi Flexible IP65 LED Mat Panel



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The Godox KNOWLED F400Bi is a High-Powered Bi-Colour Flexible Lighting LED Mat that has been specially designed to fit the needs of the film and television industry. This 400W LED features an ultra-slim profile, and flexible design, allowing it to be placed in positions that are either very difficult or impossible for regular video light fixtures. It has a CRI and TLCI of ≥96 for impeccable colour rendition. It supports Industry-Standard DMX512 control protocol, as well as Godox’s own RC-R9 2.4GHz Wireless Remote and Bluetooth enabling it to be used with the GODOX Light App. ideal for large productions. The F400Bi Flexible Lighting LED Mat is perfect for large-scale Film and TV productions. and is also suitable for Broadcasting and Commercial Video productionas well as for use on movie sets

Complete Flexibility with Your Lighting - F400Bi Flexible Lighting LED Mat

One of the Key features of the GODOX F400Bi is its foldable design. When opened, it becomes a large 60x120cm light source, producing soft even lighting, even without a softbox (sold separately). When not in use it can be folded down to a fraction of its full size, for portability. It can also be placed in positions that would be very difficult or impossible for other light fixtures, giving you added flexibility.

Godox KNOWLED F400Bi Flexible Mat

Perfect Practical Lighting - Godox KNOWLED F400Bi LED Mat

Due to their ultra-thin profile, the Knowled F-Series are perfect for illuminating your subject(s) with soft lighting, in spaces that are either impractical or impossible with traditional Video light fixtures. They can be used in places such as the ceiling of car interiors, in cramped spaces places where there isn’t a lot of room for light stands such as the interior of a train, or as lightweight overhead lighting when shooting either indoors or outdoors.

IP65 Water-Resistance - F400Bi Flexible Lighting LED Mat

The KNOWLED F400Bi Flexible Lighting LED Mat is IP65 certified. This means that it is weather resistant, enabling it to be comfortably used in weather conditions such as rain or fog, etc.  (PLEASE NOTE: The Controller Box is NOT IP65 Water-resistant).

Godox KNOWLED F400Bi Flexible Mat has IP68 Water Resistance

Unrivalled Colour Accuracy - Godox KNOWLED F400Bi LED Mat

The F400Bi Flexible Lighting LED Mat has a CRI (Colour Rendition Index) of ≥96 and a TLCI (Television Lighting Consistency Index) of ≥96. This means that the F400BI will render colours accurately making it ideal for broadcast usage. Perfect for illuminating, tv studios, and movie sets. 

Scientific Dimming Curves - F400Bi Flexible Lighting LED Mat

The KNOWLED F400Bi Flexible Lighting LED Mat gives you the option of four dimming curves, enabling the way that you to adjust your lighting just the way you like. You can select between a Linear, S-Curve, an Exponential Curve, or a Logarithmic Curve, rendering the best lighting effects, in the shortest amount of time. 

Slow-Motion? No Problem

F400BI LED Fresnel Studio Light provides industry-leading reliability with flicker-free performance at any frame rate or shutter angle, and at any intensity level, making it ideal for filming slow-motion shots.

Industry Standard Control Protocols - F400Bi Flexible Lighting LED Mat

The F400BI Flexible Lighting LED Mat supports a wide range of international Industry-standard control methods, making it easy to integrate into your current work pipeline. It supports DMX512 control protocol (via a 5-pin XLR connection), which enables you to control a single unit or multiple units from a DMX control console. LumenRadio CRMX Control system is also available when used with the TimoLink Receiver (Sold Separately). CRMX compatibility also means these lights will be compatible with the LumiAir App, Blackout Lighting Software, and the MadMapper App. This makes the F400BI perfect for large film and television productions that are filming in large studio spaces. 

Godox KNOWLED F400Bi Flexible Mat use with TImoLink receiver for CRMX Control (Sold Separately)

Other Control Options - Godox KNOWLED F400Bi LED Mat

As well as the industry standard control protocols, the F400Bi Flexible Lighting LED Mat also features a built-in 2.4GHz wireless control receiver, enabling it to be used with the GOODOX RC-R9 Remote (sold separately). It also features Bluetooth support enabling it to be used with the Godox Light App.

Godox KNOWLED F400Bi Flexible Mat used with Godox Light App via Bluetooth

High-Quality X-Frame - F400Bi Flexible Lighting LED Mat

The F400BI comes with a high-quality aluminum-alloy X-Frame, which enables you to mount the light to a regular light stand.

Godox KNOWLED F400Bi Flexible Mat with X-Frame

More sizes and options are available 

GODOX Knowled Flexible Lighting LED Mat series comes in various sizes and power, perfect for different scenes and sets: F200BI F400BI F600BI

Godox Knowled F-Series Size-Comparison

The PIXAPRO F400BI Flexible Lighting LED Mat is the perfect Broadcasting, Corporate video, YouTube, Cinematography, Chroma Key green screen as well as for photography. Whether you’re a seasoned professional or an enthusiast, you can’t really go wrong with the F400Bi Bi-Colour LED panels. 

 What's In The Box?

GODOX KNOWLED F400Bi Foldable Panel Box Content

 Shop For The RC-R9II Wireless Remote Control

Distributed By EssentialPhoto

We are proud to now stock Godox branded lights as distributed by EssentialPhoto, this means that you will get Godox but with everything that you loved with the service of EssentialPhoto, including a 2-year warranty and UK customer support.

F200Bi/F400Bi/F600Bi Comparison Table

Model F200Bi F400Bi F600Bi
Colour Temperature Range 2,700-8,500K 2,700-8,500K 2,700-8,500K
Brighness 1,130lux @3m (5600K) 2,280lux @3m (5600K) TBC
Max. Power 200W 400W 600W
CRI ≥96 ≥96 ≥96
TLCI ≥96 ≥96 ≥96
DMX512 Yes Yes Yes
CRMX Yes (With TimoLink RX Receiver) Yes (With TimoLink RX Receiver) Yes (With TimoLink RX Receiver)
Light Body Dimensions 650mm x 631mm x 29mm 1209mm x 627mm x 23mm 1200mm x 1200mm
Controller Box Dimensions 124mm x 132mm x 270mm 124mm x 132mm x 270mm TBC

Photometric Data for KNOWLED F400Bi

CCT Unit 1m 2m 3m
2800K lux 11,500 3,550 1,760
fc 1,070 330 164
3200K lux 12,600 3,920 1,940
fc 1,170 364 180
4300K lux 14,200 4,440 2,190
fc 1,320 412 204
5600K lux 14,700 4,610 2,280
fc 1,370 428 212
6500K lux 14,300 4,520 2,230
fc 1,330 419 207
8500K lux 13,800 4,330 2,130
fc 1,280 402 198


Hawk-Woods Batteries Run-Time (Full Power)

VL-350N 52 Minutes 30 Seconds
VL-M150D 22 Minutes 30 Seconds
VL-M98D 14 Minutes 42 Seconds


  • IP65 Water Resistance
  • Full 400W Power across the colour temperature Range
  • Flicker-Free
  • CRI 96+, TLCI96+
  • DMX Support, 2.4GHz Remote Control, and On-Board Control
  • CRMX Support with Optional TimoLink Receiver (Sold Separately)
  • Linear/S-Curve/Logarithmic/Exponential Dimming Curve.
  • Record up to 20 pre sets
  • Foldable Design

What’s In the Box

  • 1x KNOWLED F200Bi Panel
  • 1x Controller Box
  • 1x X-Bracket
  • 1x 3m Connection Cable
  • 1x 5m Power Cable
  • 1x FS200Bi Softbox With Grid
  • 1x Adapter Holder
  • 1x CB87 Carry Bag


Max. Power Output400W
Colour Temperature Range2700-8500K
Brightness (Lux)2,280 Lux @ 3m (5600K)
DMX 512 SupportYes (Via a 5-Pin XMR Connector)
CRMX SupportYes (with TimoLink RX)
Light Body Dimensions1209mm x 627mm x 23mm
Controller Dimensions124mm*132mm*270mm
Box Weight


Box Dimensions

Approximately    Height  40cm  Width  20cm Length   75cm


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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Please Notea number of our products fall into 'Large', 'Extra Large' or 'Oversized' products, and would require an additional shipping fee applied automatically to the order. All of these products will display this on their dedicated listings, and further information regarding these fees can be found below

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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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  1. We will match our competitor’s current store or website price - this will apply to a UK based company only, the stock location must be based in the UK (no grey imports).
  2. The competitor’s item must be brand new, identical to ours, and offered on the same terms.
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Warranty Info

The Warranty will be based per unit and wouldn't cover multiple units in a single order. To add Warranty to multiple units, increase the number of Warranty selected in your cart. Warranty would not cover consumable parts of the unit (Such as Bulbs, Cables etc) To find out more about our Warranty, please visit here:

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