Our rechargeable picture lights have a built-in 5000mAh battery, lasting over 12 hours and charging in just 4 hours. Features USB charging and magnet adsorption for easy removal and charging. Each LED lamp bead in our painting lamp has a separate trapezoidal focusing groove for enhanced light effect with minimal power loss. This design ensures linear light distribution on the wall, perfect for paintings and dcor. Offering 3 lighting modes (white/warm/natural light) and adjustable brightness from 10-100%, our battery operated wall lamps also features timer and memory function to preserve the last used settings for added convenience. Harper Living Men's Picture light for Wall Antique Brass, Magnetic Battery-Operated Wall Lights in Gold