Sofirn SD08 Diving Light 3200lm - Bright, USB-C Rechargeable Dive

In this review the Sofirn SD08 Diving Light is judged as a purpose-built scuba torch for recreational and technical divers who need a powerful, reliable underwater beam and visible positioning. Its single biggest strength is a concentrated 3200 lumen output that reaches far underwater while a built-in RGB signal ring improves buddy visibility and acts as a battery indicator. The reviewer found it straightforward to operate and appreciated the USB-C rechargeability and long runtime, making it a practical primary or backup light for multi-dive days.

Key Features

• 3200 lumen beam: A focused, high-output beam gives clear illumination at depth so divers can identify features and navigate darker conditions with confidence.
• RGB signal ring: The ring provides a visible positioning light and shows battery state from green to red, improving safety and buddy awareness underwater.
• USB-C rechargeable: The included USB-C rechargeable battery lets you top up between dives without carrying a separate charger.
• IPX8 waterproof: Built with a solid seal and rated for deep submersion so it can be used reliably on dives down to its rated depth.
• Long runtime: A 5000mAh internal battery supports extended use across multiple dives on a single charge.
• Easy twist on/off: A simple mechanical twist switch keeps operation intuitive even with gloves and while rigged on a boltsnap or lanyard.

Who It's For

The Sofirn SD08 suits recreational and technical divers who want a high-output primary light that doubles as a visible positioning source when needed; photographers and night divers will value the focused 3200lm beam. Its also a good choice for dive instructors and buddies who need a reliable signal ring to maintain group awareness.

Divers who need a compact floodlight only, extremely lightweight travel kit, or specific proprietary battery systems may prefer alternate models; similarly, those who require an integrated bezel for video lighting accessories should confirm compatibility before buying.

Pros & Cons

Pros

• Very bright and focused beam that reaches well for navigation and spotting.
• Useful RGB signal ring that doubles as a battery indicator and standalone signal mode for visibility.
• USB-C rechargeability and a 5000mAh battery give practical long runtime for multi-dive use.
• Solid build quality and easy twist on/off operation noted by multiple users.

Cons

• At 3200 lumens the light can run warm and will reduce output as battery depletes, which is normal but worth noting.
• The unit is focused on a long-throw beam rather than a wide flood, so those wanting broad area illumination may need a secondary light.

Specifications

Brand	CSTEBOKE
Model	Sofirn SD08 Diving Light
Maximum output	3200 lumens
Battery	5000mAh rechargeable (USB-C)
Waterproof rating	IPX8, submersible up to 100 meters
Special feature	RGB signal ring (positioning and battery indicator)

Our Verdict

The Sofirn SD08 is a practical, value-minded dive light for divers who need a bright, long-throw beam plus an integrated positioning signal. Its USB-C rechargeability, solid build, and long runtime make it a sensible primary or backup torch for multi-dive trips, while the RGB ring adds safety and convenience.

Frequently Asked Questions

How long does the battery last on a charge?
The 5000mAh battery offers extended runtime sufficient for multiple recreational dives, though actual duration depends on selected output level.

Can the signal ring be used independently of the main beam?
Yes, the RGB ring has a signal mode that glows independently when the flashlight body is off for extra visibility.

Is the light rated for deep dives?
Yes, it carries an IPX8 waterproof rating and is submersible to the specified depth of up to 100 meters.