Super bright headlamp with tremendous perseverance, sophisticated technology and comfortable to wear. I was skeptical whether the 210 lumens are actually achieved or a good piece a conventional XL Mag-Lite and can replace the battery by holding long enough. Yes, yes and yes. We are thrilled. We use the lamp for the dog walks in the dark winter months. Even at 100 meters, we can keep our dog excellent eye. The battery would be charged only after about 10 weeks and daily use for the first time. The freed hand can devote the umbrella if needed or remain in his coat pocket, super now.