‎1.88 centimeters

42 LED SUPER BRIGHT – Wireless Under cabinet lights built-in 42 pcs Energy saving LED, 100 lumens, color rendering index>80 Ra,step-less dimming through touch control. brightness and comfortable to illuminate dark spaces.it has passed the EU Blue light RGO test certification.
ADJUSTABLE BRIGHTNESS & COLOR TEMPERATURE – step-less dimming, 80° angle adjustment, light color memory function, 3 level brightness, 3 level color temperature, 3000K(Warm white), 4000K(Mix light), 5000K(Cool white), suitable for light in various environments.
MAX 24H LONG BATTERY LIFE – built-in 1800mAh battery, Rechargeable, USB-C powered, it only takes 3-4 hours to fully charging. About 3 hrs in high brightness, about 24 hrs in low brightness.