... small size, easy to carry. 2. Instruction:One end is DC charging, Red light indicates charging state, Green light indicates ... is the power switch, the button is the flash light and dimmer control switch( Adjustable brightness for 100%,75%,50%,25%), another is a restore switch ... 4. standard Tube material: aluminum shell + opal PC coverLED A number: highlight SMD chippower :4.2W±0.5Wservice life :≥ ...