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Underwater USD507366(s).

Three trees Sensor Brightest LED -With Red Rechargeable for Men and Women ,Waterproof Perfect for Running, Walking ,Reading,Camping Adjustable in 200 Lumens (green).

InnoGear 5000 Lumens LED Bright Torch with Rechargeable Batteries and Wall Charger for Hiking Camping Riding Fishing

https://en.wikipedia.org/wiki/Headlamp

Amazon.com: flashlights for kids