Specially designed to clamp onto an easel, this lamp can also clamp onto a table or flat surface. The Daylight Easel Lamp has a spring loaded clamp that will fit a maximum surface depth up to 2" (5.1cms) & has a flex length of 96" (243.8cms). Light source: 20w screw fitting Energy Saving Bulb (equivalent to 100 watt daylight) see Stock Code DESB20W Supplied with bulb & long lead.