Sea Dragon Mini 1600 vs Mini 1300S: Light Comparison

Quick answer

The Sea Dragon Mini 1600 delivers 1600 lumens with a tight 4.5° underwater beam, ideal for spotlighting subjects at a distance. The Mini 1300S offers a wider 60° beam for broader scene coverage. Choose the Mini 1600 for reach and punch; choose the Mini 1300S for wide-angle video and group shots.

Brightness and beam pattern

The Sea Dragon Mini 1600 pumps out 1600 lumens through a narrow 4.5° underwater beam angle. That concentrated spot reaches farther, making it a strong choice for highlighting a specific subject or for use as a focus light with a camera that has a narrow lens. The Sea Dragon Mini 1300S, in contrast, uses a 60° beam underwater to flood a much wider area. That spread works well for video, wide-angle photography, and illuminating the scene for a buddy team.

If you often shoot macro or need to light a single creature against dark water, the Mini 1600’s beam gives you precision. If you want to fill a reef scene or avoid harsh hotspots in video, the Mini 1300S’s wider beam is more forgiving.

Battery and runtime

Both lights run on rechargeable 18650 Li-ion batteries, but the Mini 1600 uses a 3500mAh cell that delivers up to 4 hours at quarter power or 1 hour at full power. The Mini 1300S has a similar capacity but slightly different runtime numbers due to its lower output. Neither light is designed for hot-swapping batteries underwater, so plan your dives accordingly. The Mini 1600’s battery compartment includes a safety pressure release valve, which adds peace of mind for deeper dives.

For a full day of two-tank diving, bring a spare battery for either model. The Mini 1300S’s lower draw means you may get through a single dive without swapping, but the Mini 1600 at full power will need a change sooner.

Build and handling

Both lights are compact enough to fit in your hand, but the Mini 1600 is slightly heavier due to the larger battery. The Mini 1300S feels lighter and easier to maneuver, especially when mounted on a camera tray. Both are depth-rated to 100 meters (330 feet), so they work for recreational and technical diving depths. The Mini 1600’s narrow beam requires more careful aiming, while the Mini 1300S’s flood beam forgives sloppy positioning.

If you plan to use the light primarily as a handheld spotter, the Mini 1600’s weight helps stabilize the beam. If you’re mounting it on a housing or tray, the lighter Mini 1300S reduces overall system weight.

Trade-offs to consider

• Brightness vs coverage: The Mini 1600’s 1600 lumens are concentrated into a 4.5° spot; the Mini 1300S spreads fewer lumens over a 60° beam. You get reach or width, not both. Choose reach for macro or subject isolation; choose width for video or group lighting.
• Runtime vs power: At full power, the Mini 1600 lasts 1 hour. The Mini 1300S lasts longer at full power because it draws less current. If you need continuous light for a full dive, the Mini 1300S is more practical. Plan your dive profile around the battery. Carry a spare for the Mini 1600 if you shoot at full power.
• Weight vs stability: The Mini 1600 is heavier, which helps steady the beam when handheld. The Mini 1300S is lighter and easier to mount on a camera tray without adding bulk. Handheld shooters may prefer the Mini 1600’s heft; tray users will appreciate the Mini 1300S’s lightness.

Key specs at a glance

• Sea Dragon Mini 1600 Underwater LED Dive Light: 1600 lumens, 4.5° beam underwater, 1 hour at full power / 4 hours at quarter power using a 3500mAh 18650 battery, safety pressure release valve. The tight beam gives you reach for targeting distant subjects, but the short full-power runtime means you’ll want to use lower settings or carry a spare battery for long dives.
• Sea Dragon 2500F Light Head: The Sea Dragon 2500F light head uses flat panel COB LED technology with a 90 CRI to mimic natural sunlight, rated to 100 meters. High CRI (90) brings out true colors in video and stills, making it a better choice when color accuracy matters more than raw lumen output.

Which light fits you?

Best for

• Divers who need a focused spotlight for macro or distant subjects
• Shooters who want a compact, high-output focus light for a camera with a narrow lens

Not for

• Wide-angle video or group illumination where a flood beam is essential