Upgrade your setup with the TLR-7 HL-X Sub. This versatile, rail-mounted light is compatible with either Streamlight's SL-B9 USB rechargeable protected lithium-ion battery pack or a CR123A lithium battery. The interchangeable rear paddle switches offer customization to suit your shooting style. Multi-fuel technology allows operation with a rechargeable Streamlight SL-B9 li-ion USB-C battery or a CR123A lithium battery Safe-off feature prevents accidental activation, preserving battery life for extended use Secure rail grip clamp attaches and detaches quickly without exposing hands to the muzzle Durable anodized machined aluminum construction offers superior strength and resistance to wear, ensuring long term reliability User-enabled strobe function adds tactical versatility and enhanced visibility Constructed with an IPX7 waterproof rating, capable of withstanding immersion in water up to 1 m for 30 min Protected by a limited lifetime warranty for reliable long term performance Proudly assembled in the USA, ensuring high-quality craftsmanship and reliability