The simplehuman sensor mirror lights up automatically. Its tru-lux light system simulates natural sunlight, allowing you to see full color variation, so you'll know when your makeup is color-correct and flawless. And unlike traditional makeup vanity mirrors' bulb lighting, our long-lasting LEDs won't burn out or diminish. The mirror folds down flat and stores easily in its travel case. Recharges with a standard USB port (cable included), and one charge lasts up to 5 weeks.