Concept Lighting 101 Ultra Efficient Cordless Picture Light Brass 11-1/2-Inch - B000BUVL70

From the Manufacturer

Light up your favorite art without that unsightly cord dangling below the frame or any expensive in-wall installation. Perfect for times when you entertain or just relax on a quiet evening, this cordless light combines the generous distribution of warm light with long battery life. Highly efficient, these lights trump the old “weak dashboard bulb that last for 6-8 hours” variety. The 6 watt fluorescent bulb provides a color balanced glow that equals over 3 times the output of a traditional bulb. The functionality and sleekness of these lamps speaks for itself

Concept Lighting 101 Ultra Efficient Cordless Picture Light Brass 11-1/2-Inch - B000BUVL70