'Keep it 100' with the stylish upgraded 2019 Hundred Headlamp. Upgraded with a 20% brighter light. Now 120 lumens vs 100 on previous model. With 4 different stylized designs, this headlamp looks good and feels good. The independent lens articulation reduces weight imbalance and allows for a more comfortable fit. The Hundred is powered by 3 AAA batteries (included) and uses a simple button operation to cycle between High, Medium and Low beams up to 120 lumens.