Godox Knowled G-mount RGB COB light with plastic hard case MG4KR Kit1

A very high-output full-colour RGB/W/Bi-colour LED monolight kit built for film and broadcast, offering light performance in the “4K-HMI class” but in a modern LED form-factor, with precise colour mixing, G-Mount modifier compatibility and advanced control features.

The MG4KR Kit1 is the full-colour version of the MG4K series from Godox — designed to deliver extremely high light output comparable to a 4 kW HMI but with lower power draw and a far more compact design. The light head is around 10 kg which is much lighter than traditional 4 kW HMI fixtures. It features a very compact emitting surface (~63 mm diameter) acting as a near-point-source, which delivers superior performance with modifiers like reflectors and Fresnels.

Key performance specs include: a colour temperature range of 2,800 K–10,000 K with ±100% green/magenta shift for fine matching on set; full RGB/W/HSI/GEL colour-mixing (for the full-colour model) rather than just bi-colour; extremely high lux output (for example ~25,600 lux at 5 m using a 30° reflector) and dramatically higher when using narrow reflectors or optics (124,000 lux at 5 m with 15° reflector in the bi-colour variant, so the full-colour version is expected to be similar or higher). Dimming is smooth with 0.1% increments and selectable dimming curves. Cooling and durability are also excellent: the design uses an advanced cooling system to improve heat dissipation by ~67%, and the fixture is weather-rated (IP65 or better) for outdoor or challenging locations. The accessory ecosystem uses the G-Mount system, compatible with many modifiers (reflectors, Fresnels, beam-modifiers, projection attachments), giving you extensive shaping and control options.

While the “Kit1” denotes a travel kit that includes the light head, controller/ballast, cable(s), perhaps a reflector and a flight case, typical users will pair this with modifiers and rigging gear to integrate into their studio or location lighting rigs. The full-colour engine means you can not only match daylight or tungsten, but also shift colour creatively, add gels, make accent lighting, background fills, etc., in addition to serious key/fill usage for high-end productions.

Typical Specifications (highlights):

• Colour Temperature: 2,800 K – 10,000 K

• Green/Magenta Shift: ±100%

• Brightness / Output: Comparable to a 4 kW HMI, with ~25,600 lux @ 5 m (30° reflector) and much higher with narrow optics

• Power Draw: ~2,000 W (LED equivalent, significantly less than a 4 kW HMI)

• Weight: ~10 kg (head only)

• Dimming: 0.1% to 100% with selectable curves

• Mount/Accessory System: G-Mount compatible

• Weather / Durability: IP65 rated (dust & water resistance)

• Emitting Surface: ~63 mm diameter COB (near-point source)

• Control & Connectivity: On-board controls + DMX512/RDM + Ethernet (Art-Net/sACN) + Bluetooth/app + wireless (CRMX)

• Cooling / Thermal: Improved heat dissipation for longer runtime and stability

Package Contents (typical for “Kit1” version):

• 1 × MG4KR light head

• 1 × Controller/ballast unit

• 1 × Yoke/bracket for mounting

• 1 × AC power cable

• 1 × Reflector or basic modifier (often 30°)

• 1 × Flight case / road case for transport

• Safety rope / tie off accessories

• Protective cover

Why it’s good / Vibe & Use-Cases:
This kit is seriously aimed at high-end studio, broadcast and film workflows — think big commercials, virtual production volumes, large-scale set builds, daylight matching for exteriors, high-frame-rate work, or any situation where you’re replacing big HMI fixtures but want the benefits of LEDs (lower power draw, less heat, colour control). Because the emission surface is compact, it gives strong output and clean beam behaviour with modifiers — meaning better throw, tighter beam, better shape control compared to many large panels. The full-colour version means you’re not limited to white/amber light, you can add RGB looks, gel-match other sources, and integrate creative lighting into your production. On the “vibe” front: rugged, pro-grade, serious lighting kit, not just for small content creators but for full-scale production houses.

Tips:

• Make sure your power infrastructure supports ~2,000 W draw (plus cooling/ventilation) — though it’s less than a 4 kW HMI, it’s still substantial.

• Use narrow reflectors (15° or 30°) or projection optics when you need maximum throw or to light large sets at distance.

• The small emitting surface size means you can shape light very precisely, but if you want very soft light for interviews you’ll still want large softboxes or modifiers.

• Use the green/magenta shift and full-colour modes to match other lights or environment (especially on exteriors or mix-lighting).

• Ensure safe rigging/stands – even at 10 kg head weight, mounts and safety cables are essential.

• For outdoor or location use, the weather rating (IP65) gives more flexibility — but you still need to protect cables and accessories for real-world conditions.

• If you have existing G-Mount modifiers from the MG4K or other Knowled lines, you’ll benefit from accessory compatibility.