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Thank you everyone for your replies, I understand that for this situation the goggles are not mandatory, but it is good to have. I plan to buy a laser from Sanwu Laser website, I see they sell EAGLE PAIR goggles, are they the real deal? I am from Romania and can't find good goggles in my country.

I want to aim it at scenery and distant objects.

I understand about 635 now.. Please check the screen below for beam brightness (highlightes in yelow):

Thanks for the detailed reply! I am a little confused that you recommend 505nm over 520nm for night time, in the calculator in your signature the 520 appear significantly brighter, also on sanwu website, the pocked lasers page there is a night time picture with some lasers shining and 505...

Hi, thanks for your reply and thanks for pointing out the "Relative Perceived Brightness Calculator" from Brandon's signature. But can you explain the beam toggle for me? As it changes the results. When you say 635 has a bad expansion rate, you mean that it will stay tighter focused on longer...

Hi all, I want to buy a laser from Sanwu, but I really need some advice. Now I have a cheap laser 303, green, the label says below 100mW, but I don't know the real power. Now I want a better quality product with a better visibility. My aim is to have the most visible laser beam on long...