Streamlight 66210 Megastream Black Aluminum, White Led 150/500/1800 Lumens, 92-322 Meters Beam Distance

The Streamlight Megastream is a USB-rechargeable EDC flashlight built for hunters, shooters, and outdoor enthusiasts who demand serious output without the bulk. This black aluminum tactical light delivers up to 1800 lumens on high and punches a beam out to 322 meters—more than enough to scan distant terrain or light up a target area from well back. Three brightness modes let you dial in the right power for the task: 1800 lumens for maximum range, 500 lumens for balanced output and longer battery life, or 150 lumens for close-range work that stretches runtime to 13 hours.

Built for the field, the Megastream's machined aluminum body and hardened polycarbonate lens withstand the abuse of serious use. It's waterproof to 1 meter for 30 minutes and rated for 2-meter impact resistance, so it'll survive a drop or a splash at the river. The rechargeable SL-B34 lithium-ion battery pack charges via USB-C either in the light or outside it, and a sliding metal sleeve protects the charging port when you're out working. The tail switch gives you momentary or constant-on control, and the removable pocket clip lets you secure it to gear or stash it in your shirt.

At just 5.4 ounces and 5.3 inches long, the Megastream rides light in a pack or cargo pocket without getting in the way. It comes with a USB-C charging cable and a belt holster, so you're ready to go straight out of the box. Whether you're glassing from a ridge at last light, working a night shoot, or setting up camp after dark, this is a flashlight that keeps up with hard use and delivers the punch you need.

Key Features

• Three brightness levels: 1800 lumens (high), 500 lumens (medium), 150 lumens (low)
• Beam distance up to 322 meters on high mode
• USB-C rechargeable lithium-ion battery; charges in or out of the light
• Waterproof to 1 meter for 30 minutes; impact-resistant to 2 meters
• Machined anodized aluminum body with polycarbonate lens
• Tail-switch control with momentary or constant-on operation
• Removable pocket clip for gear attachment
• Includes USB-C cable and holster

Specifications

Frequently Asked Questions

How long does the battery last on a full charge?

Runtime depends on the mode you choose. High mode (1800 lumens) runs for 2 hours, medium (500 lumens) lasts 3.5 hours, and low (150 lumens) will keep the light on for 13 hours on a single charge.

Can I charge the battery while it's still in the flashlight?

Yes. The Megastream charges via USB-C whether the battery pack is inside the light or removed. A sliding metal sleeve protects the charging port when you're not using it.

Is this flashlight waterproof?

It's waterproof to 1 meter for 30 minutes (IPX7 rated) and has been impact-tested to 2 meters, making it suitable for field conditions. It's not rated for submersion or rough water use, but it handles incidental splashes and rainy conditions.

What's included with the Megastream?

The flashlight comes with a rechargeable SL-B34 battery pack, a USB-C charging cable, and a belt holster. The pocket clip is removable, so you can attach it to gear or carry the light in the holster.