PolyTac 90X USB Multi-Fuel Right-Angle Rechargeable Flashlight500 lumens Charge cord Li Ion USB battery featuring an integrated micro USB charge port The PolyTac 90X USB or PolyTac 90X are 500 lumen tactical lights that can use either a proprietary Streamlight Li Ion USB rechargeable battery pack or Two CR123A disposable batteries. The PolyTac 90X USB is a complete rechargeable system that comes with a charge cord and a Streamlight Li Ion USB battery that features an integrated micro USB charge port. The PolyTac