1. check all the parts if fully equipped.2. connect the USB cord with charger or computer when first time use.3.There is a red light on the base, it will on when connects electricity power, about 3h to be charging full.4.If you to use the clamp, release it from the base and fix the table clamp on the suitable position ,where the plywood thickness requires less than equal40MM, rotating the lamp body to the position.5.There is touchable switch on the base, it includes PWM dimmer, clicking it less than 550ms, which can control the light . Touching it more than 550ms, this can control the PWM dimmer. Keep on touching, the brightness will be increased or decreased gradually. The brightness will stop changing when released. If touching more than 3S, the brightness will be up to the brightest or the darkest and no changing, so the to repeat.Model:-9006Lamp working voltage: DC5VLight: 6LEDRechargeable battery: 400mAh Lithium CellPower: 0.5WLuminance: 30LmColour Temperature: 6000KSource life: 25000hcolour:whiteMaterial:ABSPackage Contents:1 * LED Table Magnifier1 * USB Cable1 * baseOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.