yes,
but not constant brightness
the glow is charged by turning on the flashlight, but the glow is not battery powered
the highest brightness immediately after charging fades quickly (less than 1 minute)
but the residual dim glow remains sufficient to locate the light in the dark.
Even if I do not use the flashlight to charge the glow before bedtime, ambient light during the day, (iow leaving the light sitting on the nightstand 24/7) is enough to make the glow retain sufficient brightness to locate the light in the dark.