The max clamping distance of the clamp is 2.1in, as long as your workbench has an exposed flat edge, it can be installed to use. Such as a desk, workbench, shelf, or table. 3Color Modes & Stepless Dimmable Magnifier Lamp - Bulid in 72 pcs super bright LED,Long-lasting and Energy Efficient, 3 color modes( white, white&warm, warm) to choose.

Colour: White
Brand: Unbranded
Type: Desk/Table Magnifier
Material: ABS, Aluminium, Glass
Style: Modern
Light Colour: Clear White, Warm White, White
Sensor Type: Light
Shade Shape: Clip
Features: 3-Light, Adjustable, Colour-Changing, Dimmable, Energy Saving, Flexible, Flexible Arm
Room: Any Room, Bedroom
Lighting Technology: LED
Power Source: USB
Number of Settings: 1
Energy Efficiency Rating: A
Control Style: Push Button
Department: Adults, Boys, Children, Girls, Teenagers, Unisex Baby & Toddler
EC Range: A - G
Personalise: Yes
Labels & Certifications: CE Marking, Energy Efficient
Manufacturer Warranty: 1 Year