Just tested in my back garden, no street lights. Amazing light. Perfect shape beam for a bike. On the narrow focus I could scan a tree 100m away and see details.
I’ll be getting another one tomorrow. Plan to mount two on my handlebars or one on handlebars and one on helmet.
Will post up how long they last on a ride.
The rear on/off button is easy to click with your thumb with the hand still on the handlebars.
I have a SMART 3w NICAD night riding light which is 6 years old and has a bottle cage battery and only lasts an hour now. So the ALDI will replace it.