Optoma ZK431ST DLP Projector - 3D Short Throw 16:9 Wall Mountable White 3840 x 2160 Front 2160p 30000 Hour Economy Mode 4K UHD 300,000:1 4100 lm HDMI Network (RJ 45) Business, Education, Corporate, Class Room, Conference Room, Room

The Optoma ZK431ST makes True 4K UHD short throw projection accessible for budget-conscious education and corporate buyers. At 4,100 lumens, the ZK431ST delivers bright, vivid visuals in classrooms and conference rooms with moderate ambient light. DuraCore laser technology provides up to 30,000 hours of maintenance-free operation, eliminating the cost and disruption of lamp replacements. Four-corner correction, keystone adjustment, 360° projection capability, and Optoma Smart App compatibility make installation and alignment straightforward.

Crisp 4K from wall to wall: Native 4K UHD (3840×2160) makes text, data, and imagery sharp and readable across screen sizes up to 300"

• Project big from tight spaces: 0.496:1 short throw lens fills the screen (30-300") from about 2-11 feet away-no more crowded rooms or presenter shadows
• Bright enough for real classrooms: 4,100 lumens keep images clear and vibrant in rooms with controlled to moderate ambient light
• No lamps. No maintenance. 30,000 hours: DuraCore laser technology means zero replacement costs and no unexpected downtime
• Install anywhere: Four-corner correction, ±15° keystone adjustment, and 360° projection flexibility handle virtually any room layoutSmart setup from your phone: The Optoma
• Smart Control App guides screen alignment and gives full projector control from a mobile device