The SPT-SL-825W 27-watt Desk Lamp (2-tube) will offer flicker-free lighting suitable for reading and computer use. It simulates natural lighting and has electronic ballast that offers instant-on and flicker-free illumination. The 27W full spectrum bulb has an average life span of 6,000hrs. The flexible goose neck and swivel head feature allows for greater usage and versatility. The dimensions of the SPT-SL-825W 27-watt Desk Lamp (2-tube) are footprint 8.56(W) x 6.75(D) in, height 13.5 in and net weight 2.5 lbs.