... 2.Energy efficient 3.Stable performance 4.Green product an led light 1.Product features: With a flashing and charging function can ... 2. Instruction:One end is DC charging, Red light indicates charging state, Green light indicates charge complete; There are three function keys ... is the power switch, the button is the flash light and dimmer control switch( Adjustable brightness for 100%,75%,50%,25%), ...