Projector OPTOMA Photon Life PK31 — DLP UHD 4K 900 ANSI lumens, LED, 16:9, throw ratio 1.65:1

OPTOMA Photon Life PK31 is a standard-throw DLP projector that delivers native UHD 4K (3840×2160) resolution with 900 ANSI lumens brightness and an LED light source rated for up to 30,000 hours. The projector uses a 16:9 native aspect ratio and supports multiple video modes up to 2160p, offering clear high-resolution images for home cinema and presentation use. Its compact black housing, manual zoom (focal length 15.8–17.4 mm) and a throw ratio of 1.65:1 make the unit suitable for placement on a table, ceiling mount or tripod, while built-in audio provides portable sound without additional speakers.

Advantages

Photon Life PK31 combines UHD 4K resolution with long-life RGB LED illumination to provide high-detail imagery with low maintenance. The DLP engine ensures sharp contrast and stable color performance, and the projector's 16:9 native format matches widescreen content without scaling artifacts. Lightweight construction and auto vertical keystone simplify setup and positioning, while the integrated 5 W speaker supports immediate use in small to medium rooms.

Suitable for

• Home cinema and movie nights on a large screen
• Streaming video and TV shows in dimly lit rooms
• Casual and console gaming with low input lag
• Small meeting rooms and classroom presentations
• Portable projection on a tripod or temporary installation

Key specifications

• Projection technology: DLP
• Native resolution: UHD 4K (3840×2160)
• Brightness: 900 ANSI lumens
• Light source: LED, rated life up to 30,000 hours
• Native aspect ratio: 16:9
• Throw ratio: 1.65:1
• Focal length / manual zoom: 15.8–17.4 mm
• Screen size compatibility: approximately 1524–3810 mm (60–150")
• Built-in speaker power: 5 W
• Product colour: Black
• Weight: 2.2 kg

How to use

Place the projector on a stable surface, tripod or mount it at the appropriate distance to achieve the desired screen size using the 1.65:1 throw ratio and manual zoom. Connect a video source that supports 4K output via the available input (use compatible cables and settings on your source device). Power the unit and allow the LED light source to stabilise; use auto vertical keystone to correct minor vertical distortion. Adjust focus and zoom until the image is sharp, set volume for the built-in 5 W speaker or connect external audio if required.

Recommendations

For best image quality, use the projector in a dim or darkened room and position the device so the projection surface is flat and neutral-coloured. Select video modes that match the source resolution (up to 2160p) and enable HDR or wide colour profiles if available for richer colour reproduction. Keep ventilation areas clear and avoid blocking airflows to maintain LED lifetime close to the rated 30,000 hours.