Clip on holder for screw type bulbs and heaters. Ideal for tortoise tables. Metal clamp and surround, and ceramic screw type holder. Maximum 150W. holder has double joint with rotation at either end to give full adjustment of holder. clamp has rubber pads to increase grip, or can be fixed using supplied bolt, or can be attached to screw head using slot. Cable length is 1.8m with switch. Contains one clip on lamp. Size: Holder diameter 70mm; 70mm long; clip 100mm long; extends 70mm.