EURO TOOL® lightweight and transportable 100v 13-watt lamp. 10x3x2" when closed. Natural light reduces glare and eyestrain, and helps you see colors accurately. Designed for tabletop or two-way wall mounting. Opening the light turns it on -- if it doesn't, please verify that the bulb is fully clicked into place. Sturdy, lightweight, folding design makes this lamp easy to transport. Arm tension can be adjusted with a screwdriver.