Godox has released a detailed walkthrough video for the KNOWLED MG4K, offering an in-depth look at the 2,000W bi-color COB fixture that the company positions as a 4K HMI equivalent. We first covered the MG4K back in September and discussed it at IBC 2025, but this new video from Godox ambassador David Valente provides additional context on the fixture’s efficiency claims, thermal design, and practical setup workflow. The walkthrough arrives as the MG4K reaches wider availability, giving potential buyers and rental houses a closer look at what Godox describes as class-leading efficiency in the high-output LED segment. For those who missed our earlier coverage, the fixture draws 2,000W while claiming output comparable to traditional 4K HMI units that require twice the power consumption. Efficiency claims explained The video addresses a question many gaffers and DPs have been asking: how can a 2,000W LED match a 4K HMI? According to Valente, the answer lies in the MG4K’s COB efficiency rating of 110 lumens per watt. He notes that while some competing COBs operate in the 60-80 lm/W range, this higher efficiency allows the fixture to generate more usable light from less power consumption. Valente makes an interesting point about how the industry evaluates lighting output. For years, wattage served as a reliable shorthand for brightness, but as LED efficiency improves, this metric becomes less meaningful. Godox opted for HMI equivalency naming because it resonates with experienced crews who use HMIs as their reference point for high-output lighting. The practical benefit extends...
Published By: CineD - Today