Assertion: projector's engine | /r/HasProperty | based on dlp technology
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text: In combination with Osram's Ostar series LEDs optical engines based on DLP technology have achieved over 15 lumens per watt for high brightness applications (300–500 lumens with 0.45" imager) and over 20 lumens per watt in low brightness applications (10–50 lumens with 0.2" or 0.3" imagers).