GP brand products: https://www.hurt.com.pl/120-x-baterie-do-aparatow-sluchowych-everactive-ultrasonic-implant-hd-675-p17154.html

ultra-compact and ultra-light flashlight with built-in Li-ion Polymer battery
light force - turbo: 500 lm / strong: 200 lm / medium: 60 lm / weak: 5 lm
working time - turbo: 3h / strong: 4h / medium: 9h / weak: 100h
additional red light - strong mode: 10 lm / weak: 5 lm
additional warm light - 50 lm
USB-C charging connector
weight 60g!
IPX6 waterproof
resistant to falls up to 1m

powerful luminous flux - 300 lumens
built-in distance sensor - automatic brightness adjustment
micro USB charging connector
power supply: 3 R03/AAA GP rechargeable batteries included
IPX6 waterproof
resistant to falls up to 1m

Voltage [V]: 1.5
diameter [mm]: 8.3 in
Height [mm]: 42.5 in