Native panel, pixel shift, or upscaling — three different things · review
Acer H6815BD 4K UHD DLP projector review
A 4K UHD DLP projector that states its brightness in ANSI lumens at a price where most of the shelf stops doing so — and a specification sheet that reads like a data table rather than a sales page.
The bottom line The honest 4K entry point: the resolution is real, the brightness is stated in a unit that can be compared, and the omissions are omissions rather than misdirection.
What you are getting
A single-chip DLP projector addressing 3 840 × 2 160, with a stated output of 4 000 ANSI lumens and a stated 10 000:1 contrast ratio. Connections are HDMI with HDCP and an audio output, and there is a 3 W speaker on board.
The figure that matters, and why it is stated properly
4 000 ANSI lumens. ANSI is a measured unit: nine points across the image, averaged. At this price a large part of the shelf quotes an unqualified “lumens” figure that is measured to nothing and can be an order of magnitude larger. A maker who publishes ANSI is telling you something about itself before you read the number.
Where the specification stops short
The contrast figure is given as 10 000:1 without saying whether it is native — measured on one frame — or dynamic, produced by dimming the light source between scenes. That distinction decides how a dark scene looks, and it is not published here.
What is not on the sheet
Optical lens shift. What is stated is keystone correction, which squares a tilted image by resampling it, at a cost in sharpness. In practice that means the machine has to sit where the geometry puts it, and the arithmetic — throw ratio multiplied by image width — is worth doing before ordering rather than after.
The sound
Three watts. It exists so the machine makes a noise on its own, and any external bar improves on it. That is not a criticism of this projector specifically; it is true of almost every projector in this catalogue.
Availability
On sale from 710 € to 923 € on the German, American, British, French, Italian and Spanish Amazon stores at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on 4 September 2026. The live price is at the top of the page.
What we like, and what we don't
Strengths
States 4 000 ANSI lumens, a measured unit, where most machines near this price quote an unqualified figure
Genuine 4K UHD addressing at a price that usually buys 1080p with 4K acceptance
A specification sheet that publishes resolution, brightness, contrast and connections rather than adjectives
Compromises
The 10 000:1 contrast figure is not qualified as native or dynamic, and that distinction is what decides how a night scene looks
A 3 W built-in speaker is a fallback rather than a sound system — budget for a bar
No lens shift is stated, so placement is decided by the throw geometry rather than corrected optically
Specifications
Resolution
4K UHD, 3 840 × 2 160 — stated
Brightness
4 000 ANSI lumens — stated in a measured unit
Contrast
10 000:1 — stated; the maker does not say whether this is native or dynamic
Geometry correction
Keystone — stated
Built-in audio
3 W speaker — stated
Connections
HDMI with HDCP, audio output — stated
Amazon reference
DE B08NDQ8BC6 · US B07VKP7WGF · GB B07VKP7WGF · FR B07VKP7WGF · IT B07VKP7WGF · ES B07VKP7WGF
EAN
4710886118930
Questions people actually ask
Is 4 000 ANSI lumens enough for a living room?
It is a genuinely bright figure for a home projector, and the room still decides. Ambient light lands on the screen and becomes the black level of the image, so the same machine looks excellent with the curtains closed and flat with them open. Image size matters as much: the same light spread over a larger area is dimmer everywhere.
Does it have lens shift?
The maker does not state optical lens shift; it states keystone correction, which squares a tilted image digitally by discarding pixels. That makes physical placement more important here than on a machine with real shift — measure the throw distance before ordering.
A 4K HDR projector with Google TV on board and a stated 3 000 ANSI lumens — the built-in system is the reason to choose it, and the reason to check licensing before buying.
Best for: Someone who wants one object rather than a projector plus a streaming stick, in a room where the light can be controlled.
4K PRO-UHD · 3 000 lumens white AND colour brightness · 40 000:1 stated contrast · 3LCD · optional Wi-Fi
A 3LCD projector that publishes white and colour brightness as the same figure — a distinction single-chip machines rarely make, and one that decides how a saturated image actually looks.
Best for: A viewer who notices colour rather than pixel count, and anyone bothered by the rainbow effect single-chip projectors can produce.