I absolutely LOVE the light BUT it is incorrectly described.  I bought this specific light because it stated the clamp is OVER 3 INCHES.  That is WRONG.  According to the specs received with the lamp it is 50mm, just under 2 INCHES.  My desk is just OVER 2 INCHES.  I had to twist it around so it's now camped to the desk sideways and I'll have to search again for a correct light by leery of trusting the stated specifications or if I should trust Wayfair.