The A-Torch S4 will provide you with great illumination for all of your photography and videography needs and is ideal for the diver wanting a serious light for multiple applications. The A-Torch S4 LED dive light includes a fully rechargeable 26650 Lithium-Ion battery which is designed to give you the power that you need in your hand any time you need it. The A-Torch S4 LED dive lights represent outstanding technology with an exceptionally powerful 1000 Lumens beam.