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Epson settles with Vizony as the RD830 drops from 15,000 lumens to 370

Listed at 15,000 lumens, the Vizony RD830 is restated to 370 under ISO 21118 after Epson's false-advertising action, the widest correction in a campaign that has caught AWOL and Philips.

Epson settles with Vizony as the RD830 drops from 15,000 lumens to 370

Fifteen thousand lumens on the listing, 370 under ISO 21118. That is the correction Vizony has accepted to settle Epson's false-advertising action, and the numbers make this one of the most instructive consumer stories of the year. The Vizony RD830 was listed at 15,000 lumens, or 800 lumens depending on which listing a shopper found. Under the settlement, its white brightness is restated as 370 lumens measured to ISO 21118: roughly a fortieth of the headline figure.

Vizony has also agreed to apply ISO 21118 across its whole projector range worldwide. Mike Isgrig, vice president of consumer sales and marketing at Epson America, framed the outcome around standards rather than damages: "When projector brands use the same, internationally developed and published standards, it protects consumers and establishes trust within the industry."

ISO 21118, and the second number few listings quote

ISO 21118 is the international standard defining how projector white brightness is measured, and ANSI has adopted it as the US benchmark. It fixes the test conditions and the method, so two projectors rated this way can legitimately be compared. Nothing else on a listing carries that guarantee.

A second figure matters just as much. White brightness measures a full white field; colour brightness, measured to IDMS 15.4, measures output on saturated colour. Epson's buying guide notes that where only one rating is given it is normally white brightness, and that colour output "may be as little as one-third of the lumens stated". A single-chip DLP projector with an aggressive clear segment on its colour wheel can post a strong white number and a much weaker colour one, which is why a bright spec sheet can still yield washed-out images.

Three cheap checks on any listing

The first test is unit vocabulary. A standardised claim says ISO lumens, ISO 21118 lumens or ANSI lumens. Anything else is a signal, not a specification. Epson points buyers away from "Lux", "LED Lumens" and "Lamp Brightness", none of which carry a defined measurement method for a finished projector. "Light source lumens" and "peak brightness" belong in the same category.

Two further checks are cheap. Compare the claim against a reference: Epson recommends a minimum of 1,500 lumens for home theatre and 2,500 for classrooms, so a "15,000-lumen" portable would out-brighten a large-venue installation projector on a fraction of the power. And check whether the brand publishes the same number consistently. The RD830 case turned partly on one model being advertised at two wildly different figures at once.

A pattern of corrections, one company at a time

Epson has run this campaign for years and the corrections form a pattern. ACROJOY cut a claimed 9,500 lumens to 250. Nomvdic restated the L500 from 2,500 to 500. Global Aiptek, which licenses the HP brand, corrected the HP MP2000 Pro from 2,000 to 600. Default judgments went against Comaogo, whose projector measured 110 lumens against a claimed 9,500, and AuKing on similar facts.

The list also includes recognised brands. AWOL Vision agreed in December 2024 to restate the LTV-3000 Pro from 3,000 lumens to 2,000, and Philips and Screeneo Innovation agreed to use ISO 21118:2020 for future NeoPix models. The problem concentrates at the marketplace end, but it is not confined to unknown names.

Settlements bind one company at a time, and only prospectively. No marketplace-level mechanism requires a standardised unit before a projector can be listed, and nothing stops a new brand name appearing with the same inflated claim next quarter. Epson is also an interested party: it competes with these products and benefits when honest comparison favours 3LCD colour output.

That does not weaken the point. A corrected figure of 370 lumens against a claimed 15,000 is not marketing latitude. It is a number with no measurement behind it, and the buyer's only durable defence is to check the unit before checking the value.

Sources

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