The FlexNeck Series book lights from Carson are compact, ultra-bright LED reading lights. Both versions of the FlexNeck booklights have an absolutely adjustable lamp head that may flex and turn to shine light right where you want it most. The FlexNeck book light (FL-55) incorporates a single LED bulb with one brightness setting. The FlexNeck Plus (FL-66) is a bit more unique in the truth that it incorporates 6 super bright LED lights with two adjustable brightness settings. Both book lights clip to any size book, magazine, e-reader, tablet and so a lot more and can be utilized for convenient table top illumination. Both versions of the FlexNeck reading lights also run on 3 AAA Batteries (not included). At Carson, we strive to verify our customers are 100% satisfied with the quality of our products. We are so confident in our products that we back them with a Limited Lifetime Warranty. Carson will repair or replace your Carson item whether it is found to have manufacturing defects in materials or workmanship. Please contact Carson for additional warranty details.