Question:Can you use it in the rain?
Answer: Yes you can. It's made of hard plastic after all but you will still get wet. not recommend.

Question:Are the lights waterproof?
Answer: Yes you can .

Question:is it ce certified
Answer:The back light actually fell off inside box need to be glued back on very poor quality but very useful as it stands for scooters especially the ride-ons back red light need to be fitted more carefully looks a bit flimsy

Question:The size says Large, I have a small head (adult female), does the helmet adjust down to a small size? I’m not seeing any other sizes to purchase.
Answer:Yes you can make the helmet smaller

Question:can you turn the light off?
Answer:yes you can.

Question: Unfortunately after wearing the helmet only once. One of the rear lamps has stoped working. I’m not very confident that this will be the only one to go. Over all a little disappointed with the product.
Answer: This rate is very rare, Gudook would reward another new one once the video is checked by our service team.