Sofirn SD03 1800 Lumen 447m Throw Rechargeable Diving Flashlight

Title
Sofirn SD03 1800 Lumen 447m Throw Rechargeable Diving Flashlight with 18650 Battery

Length: 37 characters (includes the 1800 Lumen and 447m throw as requested).
Description
The Sofirn SD03 1800 Lumen 447m Throw Rechargeable Diving Flashlight with 18650 Battery is a compact, robust light designed for underwater exploration and outdoor use, ideal for scuba diving, cave exploration, and emergency situations. For example, its 1800-lumen output can illuminate a path up to 447 meters, ensuring reliable visibility in challenging underwater environments. With built-in USB-C charging, a side e-switch interface, and a durable build, it offers practical functionality. Featuring a 1-year warranty, this Sofirn SD03 for Outdoor Use suits divers, adventurers, and outdoor enthusiasts.

Powerful Illumination for Outdoor Use

The Sofirn SD03 features an SFT40 LED with a 5000K color temperature, delivering a maximum output of 1800 lumens with a beam throw of 447 meters, powered by an included 18650 Li-ion battery (3000mAh). It offers multiple modes, controlled by a side e-switch, with the following lumen outputs and runtimes:

High: 1800 lumens for approximately 1.5 hours
Medium: 1000 lumens for approximately 3 hours
Low: 300 lumens for approximately 4 hours
The flashlight charges via a built-in USB-C port, taking about 4 hours 25 minutes with a 4.2V/0.75A charger (included), and includes a power indicator (status not specified in available data). It has an IPX8 waterproof rating, suitable for submersion up to 100 meters, and is designed to withstand harsh underwater conditions, though prolonged use on high settings may generate heat, requiring careful handling.
Durable and Compact Design

The Sofirn SD03 is constructed from AL6061-T6 aluminum alloy with a hard-anodized finish, offering durability and corrosion resistance for underwater and outdoor conditions like diving or trekking. It measures 126mm in length with a head diameter of 34mm, weighing 102g without the battery (approximately 132g with the included 18650 battery), making it suitable for pocket or gear carry. The flashlight features a lanyard hole on the tailcap, a side e-switch, and a sleek design, though its compact size requires secure attachment during active use.

Designed for Outdoor and Diving Use

The Sofirn SD03 1800 Lumen 447m Throw Rechargeable Diving Flashlight with 18650 Battery for Outdoor Use is tailored for divers, adventurers, and outdoor enthusiasts needing a reliable light for underwater exploration, emergencies, or outdoor activities. For example, its 4-hour low mode ensures extended runtime for dives, while the IPX8 rating supports deep submersion, though the side e-switch UI requires practice to cycle between modes (single click to change from low to medium to high), and the included charger must be used with proper voltage settings. The robust construction enhances its reliability, but users should avoid direct eye exposure due to its intensity and rinse it with fresh water after use to prevent corrosion. The SD03's affordable price, included 18650 battery, and diving capability make it a practical choice for outdoor scenarios, offering a balance of power and convenience, though users should plan for heat management and charging logistics.

Package Dimensions and Weight

Package Width: 8.0 cm
Package Length: 14.0 cm
Packaged Height: 5.0 cm
Packaged Weight: 250g
Assembled Product Dimensions and Weight

Assembled Product Width: 3.4 cm
Assembled Product Length: 12.6 cm
Assembled Product Height: 3.4 cm
Key Features and Specs

The Sofirn SD03 1800 Lumen 447m Throw Rechargeable Diving Flashlight with 18650 Battery is built for performance. It features an SFT40 LED (5000K) with a 1800-lumen output, 447m throw, multiple modes (High, Medium, Low), a 3000mAh 18650 battery (included) with up to 4 hours runtime on low, USB-C charging (about 4 hours 25 minutes with 4.2V/0.75A using the included charger), IPX8 waterproofing (up to 100 meters), reverse polarity protection, a side e-switch, and includes a lanyard and manual, with a 1-year warranty for reliability. Its dimensions of 126mm x 34mm and weight of approximately 132g (with battery) make it a practical choice for outdoor users. This flashlight excels for illuminating underwater environments, trails, or emergencies during diving, trekking, or outdoor use, providing reliable, versatile performance for various scenarios.

Specifications Overview

Type: Rechargeable Diving Flashlight
Purpose: Scuba Diving, Cave Exploration, Emergency Situations
LED: SFT40 (5000K)
Output: Up to 1800 Lumens
Beam Throw: 447m
Modes: High, Medium, Low
Runtimes:
High: 1800 lumens for approximately 1.5 hours
Medium: 1000 lumens for approximately 3 hours
Low: 300 lumens for approximately 4 hours
Battery: 1x 3000mAh 18650 Li-ion (Included)
Charging: USB-C (about 4 hours 25 minutes with 4.2V/0.75A, charger included)
Waterproof: IPX8 (Up to 100 Meters)
Impact Resistance: Not specified
Dimensions: 126mm (Length) x 34mm (Head Diameter)
Weight: 102g (Without Battery), Approximately 132g (With Battery)
Warranty: 1 Year
Package Contents

The package includes:

Sofirn SD03 Flashlight
1x 3000mAh 18650 Li-ion Battery
Lanyard
USB-C Charger (4.2V/0.75A)
User Manual
Note: Ensure the flashlight is turned off after use to prevent accidental activation, which could drain the battery; the side e-switch can be sensitive. Use the included 18650 battery with proper polarity (positive terminal toward the head), and remove the insulating paper before first use or charging. The IPX8 rating supports submersion up to 100 meters but requires both ends to be fully screwed in; avoid prolonged submersion beyond rated depth. Handle with care during high mode to avoid burns due to heat buildup, and do not shine the light directly into eyes due to its intensity. Store in a dry place to maintain reliability, and use the included charger for optimal performance.

What's in the box
1 X Sofirn SD03 Flashlight