Read without strain while you travel with the Grace Upon Grace Purple Adjustable Clip-on Book Light. The small, compact design with its encouraging sentiment will offer you hours of reading without disturbing fellow travelers. With three light settings to choose from—bright, dimmed, and pulse, and an adjustable arm, this little book light gives you options to find the perfect level of brightness. Just use the clearly marked power button to cycle through the light settings. Eight LED chips, bonded directly into a substrate to form a single module, generate the 45 lumens bright LED light we have all come to appreciate. For your convenience, this book light comes with two 3V batteries, so it is ready to use when you take it out of the packaging.