Streamlight PolyStinger DS (Dual Switch) LED flashlight – now available with new Smart Chargers for faster charging times. The Streamlight PolyStinger DS has both a head switch and tail switch. Use either switch for on, off or to select from three brightness levels. The PolyStinger DS LED flashlight has an optimized beam with up to a 1,056 foot range. The Sgreamlight PolyStinger DS LED flashlight is a great choice for law enforcement, pest control, building inspectors and general home use.