







🔦 Light Up Your Hustle — Never Miss a Beat in the Dark
The 66210 MegaStream USB flashlight delivers an impressive 1800 lumens and 26000 candela brightness with a 322-meter beam, all packed into a compact, rechargeable EDC design. Featuring a durable aluminum alloy body with MIL-Spec anodized finish, IPX7 waterproof rating, and impact resistance, it’s engineered for professionals who demand reliability and power on the go. Includes USB-C charging, rechargeable battery, holster, and pocket clip for ultimate convenience.




| Special Feature | High Lumens, High Power, Portable, Rechargeable |
| Color | Black |
| Power Source | Battery Powered |
| Light Source Type | LED |
| Material | Aluminum |
| White Brightness | 1800 Lumens |
| Included Components | Battery, Holster, Pocket Clip, MegaStream USB Rechargeable Flashlight, USB C Cable, User Guide |
| Product Dimensions | 5.3"D x 1.1"W x 1.1"H |
| Voltage | 3.6 Volts |
| Battery Cell Composition | Lithium Ion |
| Item Weight | 5.4 ounces |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Water Resistance Level | Water Resistant |
| Warranty Type | Lifetime |
| Brand | Streamlight |
| Brightness | 26000 Candela |
| Battery Description | Lithium-Ion |
| Style | USB |
| Finish Type | Brushed |
| Specification Met | 2-meter Impact Resistant, ANSI FL1, CE, IPX7 |
| Mounting Type | Handheld |
| Recommended Uses For Product | Camping, Emergencies, Everyday Carry and Traveling, Jogging, Security |
| Global Trade Identification Number | 00080926662100 |
| Manufacturer | Streamlight |
| Size | One Size |
| UPC | 080926662100 |
| Light Output Maximum | 1800 Lumens |
| Part Number | 66210 |
| Item model number | 66210 |
| Batteries | 1 Lithium Ion batteries required. (included) |
| Finish | Brushed |
| Pattern | Solid |
| Shape | Rectangular |
| Wattage | 12.6 Watt-hours |
| Item Package Quantity | 1 |
| Cutting Diameter | 1.1 Inches |
| Coverage | water damage |
| Switch Style | momentary or constant-on operation |
| Special Features | High Lumens, High Power, Portable, Rechargeable |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Description Pile | Lithium-Ion |
| Average Battery Life | 2 Hours |
| Warranty Description | Limited lifetime warranty. |
| Assembled Diameter | 1.1 Inches |
T**N
Excellent EDC light
Having owned several Streamlight flashlights over the years, I was eager to find a newer model that offered an even longer throw and brighter beam. The Streamlight 66210 MegaStream caught my eye, and after receiving it and giving it a full charge, I took it out for a night-time test against my current Streamlight ProTac 2 LX. The results were astounding; the 66210 absolutely blew all my other flashlights out of the water. The beam is an incredibly crisp, bright white, and its throw is both precise and remarkably far, easily illuminating distant objects with clarity.What truly impressed me about the MegaStream 66210 is its perfect balance of performance and portability. Despite its immense power, the flashlight is surprisingly small, fitting comfortably in a front pant pocket, making it an ideal everyday carry (EDC) option. Its compact size in no way compromises its performance, which is anything but small. For anyone in the market for a new EDC flashlight that delivers exceptional brightness, an impressive throw, and convenient portability, the Streamlight 66210 MegaStream is undoubtedly my top recommendation.
C**2
Great flashlight.
Great flashlight. Extremely bright. Full power battery life met expectations. Covered USB port on battery cell works well.
T**7
Trusted Brand!
Streamlight is the best bang for the buck when it comes to quality flashlights. Several models to choose from, super bright, high quality, with excellent battery life. I’ve been using this brand for over 10yrs, highly recommended and trusted!
G**7
Bright light
Very nice flashlight, works well.
J**N
Great light
Great light charges easyVery bright
M**I
Good, not great
Its a streamlight. They make good bright flashlights. Not as durable or quality as Olight IMO however, but a bit cheaper
H**L
Awesome light but
Excellent light very bright and compact,it doesn't have ten tap programing or dual fuel capability but for the money it's great
J**A
Built to last
Super bright and built to last—this flashlight has excellent quality and feels tough and durable. A reliable pick for any situation
Trustpilot
3 weeks ago
2 weeks ago