As one of its daily deals, Tech Woot offers the factory-refurbished Optoma HD 1080p DLP Home Theater Projector (pictured), model no. HD180, for $649.99. With $5 for shipping, that's tied with our mention of a refurb from last November and the lowest total price we could find for a refurb today by $44. This DLP projector features a display size of up to 300", a native resolution of 1920x1080 (1080p), 1,700 lumens brightness, 3,5000:1 contrast ratio, remote control, two HDMI inputs, and other video inputs. A 90-day Optoma warranty applies. Deal ends today.