Joinwin&reg;Hot New Style Adjustable Brightness Clip-on Bright Music Stand 9 LED Light Flexible Book Reading Light Lamp with Adapter Lamp Light , Durable and practical to use Nine energy-efficient LEDs cast bright white light Precisely engineered optical grade lens spreads light evenly Durable LEDs last 100,000 hours - no replacement necessary Broad, padded clip Sliding switch controls two brightness settings