The TL8000P is a self-contained technical light that pumps out a stunning 8000-lumen narrow beam. This light has a compact body style, uses a reliable push-button switching mechanism, with a 10 degree beam angle, a battery indicator on the light itself, and your choice of four power levels and an SOS function. As a self-contained light, it uses a self-contained Lithium-ion rechargeable battery pack and comes with a charger. The TL8000P also comes with an aluminum lantern-style handle, and a slim fit goodman handle which makes this light a versatile option for any diver wanting the extreme light output needed in demanding conditions. Optional spare batteries are most often purchased with these lights (BATCELL18650x7).