It makes sense comparing Nebula Mars II vs Epson PowerLite 1781W because they both are able to give some premium features. Based on our rating, Mars II has a total rating of 6.6 out of 10 versus 7 for PowerLite 1781W.
Advantages Nebula Mars II over Epson PowerLite 1781W
Lower noise level, 32 dB vs 39 dB
Lower power consumption, 57 W vs 309 W
Longer lamp life (normal mode): 30000 vs 4000 hours
Stereo sound vs mono from integrated speakers
Advantages Epson PowerLite 1781W over Nebula Mars II
Bigger projection screen size: 50-150 inch vs 30-150 inch