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😊 Thanks for your help . Just one tiny question . ◇ does 532nm and 520nm have really (big/minor/negligible)visibility difference in real life apart from theory?

Hi guys ! I am going to buy my first laser and I was confused between wicked laser krypton which is 520nm 1w at $500 and sanwu challanger 2 either 1.2w at 520nm and 1w at 525nm which both are almost less than $600 which the options I chose( multi mode one ). Now there are three laser from which...