I'm max from Singapore. I realized there is a lot of contradictory information of lasers and over here the people actually know what they are talking about, so I've decided to join this forum. I've been looking to get a laser for astronomy, likely a 520nm one. What power output for a green laser is recommended to get a clear beam at night? I don't want anything too powerful. Also what do you think of ebay sellers like shadowlasers.