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Recent content by JustRegisteredNow

  1. J

    How come my eyes are hurting?

    So I forgot to mention that in my previous post. I have a 15Watt blacklight Flashlight and the reflected light bounces on my eyes, now my eyes are aching with a stinging pain. It hurts when I look left and right. Is that from the light or from not enough sleep? It's 375nm light
  2. J

    Is 375nm light the same as 405nm?

    I have a black light flashlight that's ranged 375-380nm and it looks like the same purple light that my old violet laser pointer had. Like 100% same color and everything. Side note, is it safe to shine blacklight on your skin? It's 15Watts in power. It is 375nm wavelength and it has some kinda...
  3. J

    how did they measure light size?

    "650 nanometers" like what? Did they just put a microscope and turn on anything with red light and measure it? also why is it 650nm when light can illuminate the entire room? as far as I'm concerned, it's infinity nanometers wide.
  4. J

    Did O-like scam me?

    So after like 19 days of waiting, I finally received my 100mW $65 green laser, but surprise surprise, it's broken. I even bought new batteries because I thought it must have been the batteries. So the batteries came, they were pre-charged so it was good to go. I put one 18650 3.7 volts 5000mAH...


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