Streamlight
Streamlight 66210 MegaStream Rechargeable Tactical Flashlight
Streamlight 66210 MegaStream Rechargeable Tactical Flashlight
The Streamlight MegaStream delivers exceptional brightness and beam intensity in a compact handheld design engineered for everyday carry and demanding tactical tasks. Generating up to 1,800 lumens and 26,000 candelas, it produces a focused beam reaching up to 322 meters to illuminate broad work areas and distant objects with ease.
Constructed with durable machined aluminum and an anodized finish, this flashlight features IPX7-rated water resistance and impact resistance for dependable use in harsh environments. The versatile multi-mode system allows swift adjustments across lighting levels, making it ideal for outdoor recreation, emergency preparedness, and professional security applications.
Key Features
| Brand | Streamlight |
| Model Number | 66210 |
| Light Source Type | LED |
| Maximum Brightness | 1800 lumens |
| Beam Distance | 322 meters |
| Power Source | Battery Powered |
| Battery Type | Lithium Ion (SL-B34) |
| Voltage | 3.6 V |
| Material | Machined Aluminum |
| Water Resistance Level | IPX7 |
| Product Dimensions | 5.3 in L x 1.1 in W x 1.1 in H |
| Product Weight | 5.44 oz |




Highlights
- HIGH-OUTPUT PERFORMANCE: Produces up to 1,800 lumens and 26,000 candelas for powerful illumination and long-range visibility during inspections, outdoor activities, and emergency situations
- COMPACT HIGH-CANDELA FLASHLIGHT: Delivers exceptional brightness and beam intensity in a handheld design that fits comfortably in pockets, packs, and gear bags
- EVERYDAY CARRY & OUTDOOR VERSATILITY: Ideal for property checks, camping, hiking, inspections, emergency preparedness, and daily carry applications where dependable illumination is essential
- WHAT’S IN THE BOX: Includes MegaStream USB flashlight, charging cable, holster, and standard accessories
- BUILT STREAMLIGHT TOUGH: Machined aluminum construction with a durable anodized finish, water-resistant performance, and impact resistance for dependable use in demanding environments
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Materials & care
Wipe the machined aluminum body with a soft, damp cloth as needed. Keep the USB charging port clean and ensure threads remain free of debris to maintain water resistance.
Compatibility
Compatible exclusively with Streamlight SL-B34 rechargeable lithium-ion battery packs.
How to use
To activate High mode, tap and hold the tail switch, then click to lock on. For Medium mode, quickly double-tap within 0.4 seconds and click to lock. For Low mode, triple-tap within 0.4 seconds per tap and click to lock.
Warranty
Limited lifetime warranty.What's included
- MegaStream USB flashlight
- Charging cable
- Holster
- Standard accessories
Downloads
Frequently asked questions
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