All are powered from an internal battery, which can be recharged via USB, or by cranking the dynamo handle. There’s a USB charging outlet to provide critical power to your phone in an emergency too. If you find yourself with nothing but hand-power, the dynamo will give you over 10-minutes of radio or torch functionality, or two minutes of siren. Of course, on a full charge they’ll run for much longer.Â
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- Internal Lithium Polimer (LiPo) Battery
- Dynamo Crank Power Backup
- Dual-Function Torch
- FM Radio
- Emergency Siren
- Battery:Â 3.7V 480mAh LiPo
- Charge Time:Â Approx 2hrs
- Working Time:
0.5W LED: ≥4hrs
Dual LED: ≥10hrs
Radio: ≥5hrs
Siren:  ≥70min
- Light Output: ≥30 lumens (0.5W LED)
         ≥6 lumens (Dual High Brightness LED)
- Emergency Siren Output: ≥120dB
