Dual Gooseneck Arms Clamp Design Energy Efficient 3 Watt Led Spotlight , Economical Solution for Microscope Light with On/Off Switch , Great For Laboratory Work Task Area , Black Great economical solution for Microscope Light with 2 fully adjustable gooseneck arms allow easy positioning of the 2 light heads .On/Off toggle switch on cord, twelve inches from base. Comfortable, flicker-free and ghost-free lighting for reading/work/study; pleasant on the eyes, causes less fatigue Strong clamp opens up to 1.5" width and can be used perfectly with laboratory work task desk, office tables, computer desks, headboards, etc. The lamp is lightweight and easy to move and it simply clamps firmly in place.You can light up even the smallest space in your home and put it to practical use with this super-slim lamp. The latest LED light technology guarantees a bright source of light with a long-lasting lifetime and minimal energy consumption