Stability: 6.1 inches weighted base is made of metal which more than enough to keep the lampstands firmly. An adjustable desk lamp can be extended up to 18 inches, provide a large lighting area in any position you need.
Function: With 2.5 inches wide clip, the architect desk lamp clamp can be clipped on any table shelves that are vertical or horizontal. You also can stand the study lamp on its own by a heavy-duty base. Have more flexible use than fixed light to decor any places like office, dorm, bedroom, etc
User-friendly: On/Off switch conveniently located at 51 inches long cable for quick and easy use. The task lamp including with all accessories included, bulbs, clamp, shade, and base, no need to buy anything else
USB powered: This adapter plug is USD plug, You can use a power bank, wall adapter, computer, and laptop to light it up.