Streamlight 66320 MacroStream USB Flashlight 500 Lumens EDC Black

The Streamlight 66320 MacroStream USB delivers 500 lumens of bright white light in a compact everyday carry package. This rechargeable tactical flashlight combines professional-grade performance with convenient USB charging capabilities for reliable illumination when it matters most.

What Makes This Different

Unlike standard battery-powered lights, the MacroStream USB features integrated lithium-ion battery technology with direct USB charging capability. The dual-output design provides both high-intensity 500-lumen flood and extended-runtime 50-lumen modes. Advanced TIR optics create an optimized beam pattern that balances throw distance with close-range visibility, eliminating the hot spots common in cheaper flashlights.

Key Features

• Dual output modes: 500 lumens (1.5 hours) and 50 lumens (12 hours runtime)
• USB rechargeable lithium-ion battery with charging indicator
• Durable black anodized aluminum construction with anti-roll design
• TIR optics produce smooth, even beam with 118-meter throw distance
• IPX4 water-resistant rating for all-weather reliability
• Tactical tail switch for one-handed operation and momentary activation
• Removable pocket clip for secure carry and hands-free use

Field testing demonstrates consistent performance across temperature ranges from -40°F to 120°F. The MacroStream maintains full brightness output throughout the battery cycle, unlike lights that dim gradually as power decreases. Law enforcement professionals rely on this model for patrol work, while outdoor enthusiasts appreciate the extended runtime for camping and emergency preparedness. The compact 4.9-inch length fits standard duty belt holders and tactical pouches.

Technical Specs

• Length: 4.92 inches (12.5 cm)
• Weight: 2.4 ounces (68 grams) with battery
• Body diameter: 0.98 inches (2.5 cm)
• Material: 6000 series machined aluminum with Type III hard anodizing
• LED: C4 white LED with 50,000-hour lifespan
• Battery: Integrated lithium-ion rechargeable
• Charging: Micro-USB port with included cable
• Impact resistance: 1-meter drop tested
• Operating temperature: -40°F to 120°F (-40°C to 49°C)

Streamlight backs this flashlight with their limited lifetime warranty and established reputation for tactical lighting solutions. The MacroStream USB eliminates battery replacement costs while providing the brightness and reliability demanded by professionals who depend on their equipment daily.