Tajima LED Keep Maintains Brightness Until Battery Boosts to Includes Dedicated Rechargeable Headlight, Just, 100% Dies, 500lm, Battery, High-Capacity

Unique control keeps brightness at 100% until battery runs out Equipped with a boost function that illuminates maximum brightness (500lm/10 seconds) with one push Brightness (lm): Boost: 500 / High: 180 / Mid: 100 / Low: 50 Run Time (h): Boost: - / High: 10 / Middle: 19 / Low: 34 Ultra-large capacity 4,700mAh dedicated rechargeable battery set (LE-ZP3747)