We had a chance to test and compare two models: Optoma ML750ST vs Optoma HD27 and this review should help people who are looking for a good projector. Based on our rating, both projectors have the same overall rating of 7.
Advantages Optoma ML750ST over Optoma HD27
Lower noise level, 22 dB vs 26 dB
Lower power consumption, 77 W vs 260 W
Longer lamp life (normal mode): 20000 vs 5000 hours
Advantages Optoma HD27 over Optoma ML750ST
Bigger projection screen size: 30-300 inch vs 30-80 inch