The top surface of the Anker LC40 flashlight serving as the daytime running light on Mary’s bike sees plenty of sunlight, particularly when it’s sitting beside her garden plots, and the black anodized finish on the screw-in battery cap has begun fading:
The bottom side of the cap is in fine shape, as is the main case, so the two parts came from different metal finishing lines.
The light on my bike, a marginally newer and essentially identical Bolder LC40, remains all black. I have no idea what “Bolder” means in this context.
Obviously, I must get out more …