---
product_id: 700490786
title: "66210 MegaStream USB 1800-Lumens Rechargeable Flashlight | 1800-Lumen 26000-Candela High-Output Flashlight with USB-C Cable and Holster, Black"
brand: "streamlight"
price: "$178.50"
currency: USD
in_stock: true
reviews_count: 9
category: "Streamlight"
url: https://www.desertcart.us/products/700490786-66210-megastream-usb-1800-lumens-rechargeable-flashlight-1800-lumen-26000
store_origin: US
region: United States of America
---

# 322m beam distance 1800 Lumens max brightness 2-hour runtime on high 66210 MegaStream USB 1800-Lumens Rechargeable Flashlight | 1800-Lumen 26000-Candela High-Output Flashlight with USB-C Cable and Holster, Black

**Brand:** streamlight
**Price:** $178.50
**Availability:** ✅ In Stock

## Summary

> 🔦 Light up your life with the MegaStream — because your EDC deserves to shine brighter.

## Quick Answers

- **What is this?** 66210 MegaStream USB 1800-Lumens Rechargeable Flashlight | 1800-Lumen 26000-Candela High-Output Flashlight with USB-C Cable and Holster, Black by streamlight
- **How much does it cost?** $178.50 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/700490786-66210-megastream-usb-1800-lumens-rechargeable-flashlight-1800-lumen-26000)

## Best For

- streamlight enthusiasts

## Why This Product

- Trusted streamlight brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rugged & Ready:** Military-grade aluminum body with IPX7 waterproofing and 2-meter impact resistance for unstoppable durability.
- • **Compact Powerhouse:** Sleek, pocket-sized design that fits your EDC without weighing you down.
- • **USB-C Rechargeable:** Fast, convenient charging with built-in indicator—never get caught in the dark again.
- • **Blinding Brightness:** Illuminate your world with a powerful 1800-lumen beam that outshines the competition.
- • **Long-Distance Vision:** See clearly up to 322 meters away—perfect for night navigation or tactical precision.

## Overview

The Streamlight 66210 MegaStream is a compact, rechargeable flashlight delivering an intense 1800 lumens and a focused 322-meter beam. Built with a durable aluminum alloy case and IPX7 waterproof rating, it’s designed for everyday carry and tough conditions. Featuring adjustable brightness modes, a USB-C charging port with indicator, and a 2-hour runtime on high, it’s the ultimate blend of power, portability, and reliability for professionals and adventurers alike.

## Description

The Streamlight 66210 MegaStream flashlight delivers unmatched power and performance in a compact design, making it the perfect everyday carry light for those who demand reliability and versatility. With an impressive 1,800 Lumens of brightness and a 26,000-Candela beam intensity, the MegaStream produces a focused, high-output beam that reaches far into the distance, making it ideal for everything from navigating dark environments to tactical applications and everyday tasks. The MegaStream is compact and lightweight, fitting comfortably in your hand, pocket, or gear bag without adding bulk. The tail cap switch offers seamless operation with two user-friendly lighting modes: momentary-on, for quick bursts of light, and constant-on, for steady illumination when needed. This intuitive control ensures you have the flexibility to adapt to any situation, whether you’re inspecting tight spaces, working outdoors, or responding to an emergency. The MegaStream features a built-in USB-C charging port for quick and convenient recharges, eliminating the hassle of replacing batteries. A handy charging indicator lets you know the charging status, so you’re always prepared for your next adventure. With its long-lasting rechargeable battery, the MegaStream delivers reliable performance that you can count on time and time again. Constructed with durability in mind, the MegaStream is built to withstand tough conditions. Its rugged housing is designed to endure daily wear and tear, while its IPX7 waterproof rating ensures reliable performance even in wet or harsh environments. Whether you’re caught in a rainstorm, working near water, or exploring the outdoors. The Streamlight 66210 MegaStream combines power, portability, and durability into one compact, easy-to-use package, making it the ideal flashlight for professionals, outdoor enthusiasts, and everyday users alike. Its high-Lumen and high Candela output, dual-mode operation, and convenient USB-C charging make it a versatile and practical tool for a wide range of applications. Upgrade your everyday carry gear with the Streamlight MegaStream and experience the perfect balance of performance and convenience.

Review: This thing is a mini sun in my pocket - This flashlight is seriously bright. Like, I knew it said 1800 lumens, but nothing prepares you for how much light this thing throws. It cuts through darkness like it’s nothing, and the beam distance is wild — perfect for night walks, emergencies, or just feeling like a superhero in your driveway. The build quality feels premium and solid without being bulky, and the USB charging is super convenient. One charge lasts me a long time, even with regular use. It doesn’t overheat, the switch feels sturdy, and the size is perfect for everyday carry. If you want a flashlight that’s reliable, insanely bright, and actually worth the price, this is the one. Streamlight really doesn’t miss. I cannot function at work without it.
Review: Very bright - Awesome light. Smaller than I thought as well. Works perfectly as an EDC. It’s extremely bright for its size, and the battery lasts a long time… so far. I wish I could buy a replacement battery (like a regular 18650) to use as a backup though. Awesome little flashlight, definitely worth it over the Streamlight MacroStream. The MacroStream IS a little smaller. But when comparing lumens and candela. The mega stream wins every time.

## Features

- Powerful 1800 Lumen, 26000 Candela, 322 Meter beam distance and a run time of 2 Hours on high mode in a compact everyday carry size
- Adjustable modes of high, medium, and low; push-button tail switch with momentary or constant on operation
- EDC Designed: Designed to be your EDC light; can be clipped to pocket, hat, or accessories; Ideal for go bags and travel
- Built-in charge indicator and USB C charge port with cover slide; to charge, slide the head cover back
- Machine aluminum alloy case with Type II MIL-Spec anodized finish with unbreakable polycarbonate lens; IPX7 waterproof to 1 Meter for 30 Minutes and 2 Meters impact resistance tested

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0DPNM61ZV |
| Additional Features | High Lumens, High Power, Portable, Rechargeable |
| Batteries are Included | Yes |
| Battery Description | Lithium-Ion |
| Battery Life | 2 Hours |
| Battery Type | Lithium Ion |
| Best Sellers Rank | #12,533 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #185 in Handheld Flashlights |
| Brand Name | Streamlight |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 282 Reviews |
| Finish Types | Brushed |
| Global Trade Identification Number | 00080926662100 |
| Included Components | Battery, Holster, Pocket Clip, MegaStream USB Rechargeable Flashlight, USB C Cable, User Guide |
| Item Dimensions D x W x H | 5.3"D x 1.1"W x 1.1"H |
| Item Dimensions L x W x H | 5.3"L x 1.1"W x 1.1"H |
| Item Type Name | Tactical Flashlight |
| Item Weight | 0.34 Pounds |
| Light Output Maximum | 1800 Lumens |
| Light Path Distance | 322 Meters |
| Light Source Special Features | Adjustable Brightness, High Output, Reliable |
| Light Source Type | LED |
| Manufacturer | Streamlight |
| Manufacturer Part Number | 66210 |
| Manufacturer Warranty Description | Limited lifetime warranty. |
| Material | Aluminum |
| Material Type | Aluminum |
| Model Number | 66210 |
| Mounting Type | Handheld |
| Number of Batteries | 1 Lithium Ion batteries required. (included) |
| Number of Light Sources | 1 |
| Power Source | Battery Powered |
| Recommended Uses For Product | Camping, Emergencies, Everyday Carry and Traveling, Jogging, Security |
| Runtime | 2 hours |
| Set Name | MegaStream USB Rechargeable Flashlight Set |
| Shape | Rectangular |
| Size | One Size |
| Special Feature | High Lumens, High Power, Portable, Rechargeable |
| Specification Met | 2-meter Impact Resistant, ANSI FL1, CE, IPX7 |
| Style Name | USB |
| UPC | 080926662100 |
| Unit Count | 1.0 Count |
| Voltage | 3.6 Volts |
| Warranty Type | Lifetime |
| Water Resistance Level | Water Resistant |
| Wattage | 12.6 Watt-hours |
| White Brightness | 1800 Lumens |

## Product Details

- **Color:** Black
- **Light Source Type:** LED
- **Material:** Aluminum
- **Power Source:** Battery Powered
- **Special Feature:** High Lumens, High Power, Portable, Rechargeable

## Images

![66210 MegaStream USB 1800-Lumens Rechargeable Flashlight | 1800-Lumen 26000-Candela High-Output Flashlight with USB-C Cable and Holster, Black - Image 1](https://m.media-amazon.com/images/I/611X8-zCVgL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: How long does it take to charge the MegaStream USB flashlight?**
A: The battery will recharge in about five hours. Streamlight recommends charging the battery fully before first use.

**Q: How do I charge the battery?**
A: Turn the light off and slide the head cover toward the tail switch to expose the charge port of the battery. Using the supplied cord, plug the USB-C connector into the charge port. You can also charge the battery outside of the light.

**Q: How do I know when the battery is fully charged?**
A: While charging, the red LED will illuminate. Once fully charged, the LED will change to green.

**Q: What batteries can I use in this light?**
A: The MegaStream USB accepts ONLY the SL-B34 battery pack from Streamlight.

**Q: How do I cycle through the light modes?**
A: To activate High mode: Tap and hold; click to lock on. To activate Medium mode: Fast double-tap (within 0.4 seconds) and hold; click to lock on. To activate Low mode: Fast triple-tap (within 0.4 seconds per tap) and hold; click to lock on.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This thing is a mini sun in my pocket
*by T***Y on November 29, 2025*

This flashlight is seriously bright. Like, I knew it said 1800 lumens, but nothing prepares you for how much light this thing throws. It cuts through darkness like it’s nothing, and the beam distance is wild — perfect for night walks, emergencies, or just feeling like a superhero in your driveway. The build quality feels premium and solid without being bulky, and the USB charging is super convenient. One charge lasts me a long time, even with regular use. It doesn’t overheat, the switch feels sturdy, and the size is perfect for everyday carry. If you want a flashlight that’s reliable, insanely bright, and actually worth the price, this is the one. Streamlight really doesn’t miss. I cannot function at work without it.

### ⭐⭐⭐⭐⭐ Very bright
*by S***L on March 23, 2026*

Awesome light. Smaller than I thought as well. Works perfectly as an EDC. It’s extremely bright for its size, and the battery lasts a long time… so far. I wish I could buy a replacement battery (like a regular 18650) to use as a backup though. Awesome little flashlight, definitely worth it over the Streamlight MacroStream. The MacroStream IS a little smaller. But when comparing lumens and candela. The mega stream wins every time.

### ⭐⭐⭐⭐⭐ Great light
*by J***S on May 6, 2026*

The oniy deficiency I have found is the clip comes off too easily. Other than that this light works great. Bright and lasts longer than I expected from a rechargeable light.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-07*