Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: do these ones flash while moving?
Document: The adapter is crappy though its like single usage which is stupid since you need to pump up your bike more than a car. You're going to have to go to your local bike shop and get some shraeder to presti valve adapters, if you're running presti valves. The brass ones are what most places will carry. If you have the option aluminum is best since its 5 times lighter than brass.
made of cheap plastic. worked fine.the bulb is actually pretty long and hits my chain on the rear tire.about 2in long total length
Worked well for a good 2 weeks then went out. Needs batteries every week or so. Needs to be smaller and more conservative
What a disappointment.. Great concept but a very unreliable and cheap product. I was hoping they would work as advertised.
These lights are very neat, I haven't got to use them due to the weather, but very easy to use and very bright!! !
The bad part about this product is it sticks out too far. The worst part is the batteries did not last at all. I used for about 15-20 minutes to go from point A to point B and batteries were dead. It is too much trouble to keep changing the batteries.
I have the blue on the back tire of my bike and the green one (which I purchased as well) on the front tire.Love them!
I got these for some bikes. I shook them, and nothing happened. I was expecting light, but no. I picked up the next one shook it, nothing.....I read the back of the packaging, motion activated.......So I open them up, and what do I see? A tiny white plastic square which stops the circuit between the battery, and the spring which closes the circuit in the light.
Excellent and inexpensive!!! Easy to use; much better quality than expected, I'm ordering more for my car, cheaper to order these than to buy new batteries!
Bought these to light up our bikes at night to avoid being killed. Were still alive so they must be working.
Answer: no