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  1. Q

    I bought a laser but seller doesn't respond

    Hello, i just wanted to ask if i should be worried I have bought this laser from the username: trinh hong phuoc We have a 3 page long conversation wich he responded to every message within a day everytime After i paid the money through paypal as payment ($282), he doesn't respond anymore My...
  2. Q

    26650 or 18650 configuration

    Hello, i wanted to ask if 2 x 18650 batteries is good enough for a 6W 445nm laser or should i better pick 2 x 26650? is there a massive difference in capacity between the two or is the difference not that big? because i would like to have the 2 x 18650 configuration so the laser can be heavier...
  3. Q

    Is there a beam difference between 520nm and 525nm?

    Hello, I wanted to ask if there is any beam difference between 520nm and 525nm Does one have a tighter/better beam than the other? like different lenses or something? because i want to buy a Sanwu 1.2W green laser but i have an option between the two The 1.2W 520nm is 40$ cheaper than the 1.2W...
  4. Q

    470nm vs 445nm against 525 nm

    Hello people, I just wanted to ask if you can still see a big difference between 470nm / 525nm because i want to buy a sanwu blue and a green laser my options are 5W 445nm or 4W 470nm against a 1.2W 525nm personally i like the aqua blue more (i never seen in real life but i know aqua blue will...
  5. Q

    sanwu challenger 2 or striker series?

    Hello i wanted to ask you guys your opinion on the sanwu challenger 2 and striker series because i can't decide i want to buy the 1W 520nm , 4 or 5W 470nm and 1W 635nm the challenger 2 and striker series cost approx. the same the striker series is bigger but is it very very big? i know that...
  6. Q

    sanwu laser beam expander

    Hello i wanted to ask if some of you guys have experience with the sanwu laser expander https://www.sanwulasers.org/product/x3beamexpander it expands the beam 3 times with it but does this also mean that the beam will be watered down (more transparent) ? so when looking at the side of the beam...
  7. Q

    1 battery or 2 batteries configuration for laser?

    Hi i wanted to ask what is the best and what advantages/disadvantages is for a laser with the option for having: 2 x 18350 batteries or 1 x 18650 battery will the 2x18350 batteries will give me more power? the lasers are 1W 520nm and 4W 470nm if that would make a difference thank you in advance
  8. Q

    are these 18650 more real?

    Hey i know there are millions of fake ultrafire 18650 or whatever fire they might be calling i wanted to ask if the batteries i just bought are somewhat more real/legit than the badly fake ones...




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