4 ms·

My record was 6 layers of duct tape! Didn't have any electrical tape around

• lazide 1y ago
  A single small piece of aluminum foil under the tape will block all light.
  • octo888 1y ago
    That's exactly what I did on the next one but I think my aluminium foil was cheap because I'm sure one layer didn't do it LOL
    • lazide 1y ago
      It sounds like you might have a diode pumped laser for a status LED too hah