Micro LED Illuminated center Dot technology appears finer as you decrease brightness for pinpoint accuracy.
-Press either button to turn On, and Press both “+” and “-“ together to turn unit off.
-When LED remains on, the light is automatically turned it off after two hours.
-Adjustable LED with 12 step brightness settings with included CR2032 battery.
-When the light is turned on, it remembers the last brightness setting step.
-When the battery is low, the light will be flicker
-It can be worked when the temperature -20 degree.