I turned this on the other morning during the heavy rain ride out for coffee before sunrise.
I installed this thing (amazon) years ago. The battery seems to last forever!
Has a button on the side for various lighting modes - a slow flash, side-to-side, full on, etc.
I just have to remember th turn it off after a ride.
("umm, something is blinking like a bomb on your scooter out there in the garage!')
Made to attach to handlebars - so it fits well on the LIKE's crash bar.
Every single one of my scooter rides starts in the dark - so I think a good deal about my rear lighting.
Stig