I have my cat eye double shots on my helmet for varying reasons.

One, someone stole my dear's bike which had the handlebar mount for it & i've no clue where to get another one..

Two, I can't see the road even if i have it on my handlebars. THey don't point to where I want.

Three-I tilt my head or my light down when passing people on one of the bridges going to work.

Four-When not riding around, I turn the light off..I kinda blinded a police officer by accident (long story, i'd come accross a murder investigation & the officers were blocking the road & forgot to turn if off before i asked him which way i could go..)

People think the light's too bright but i can hardly see with it!