SeaLife vs Heinrichs Weikamp
Sea Dragon 2500F vs hw Video
Which light belongs on your camera rig?
SeaLife
Scores are our editorial opinion of these models, based on features, suitability and ownership trade-offs—not hands-on test results. How we chose →
We’d pick the Sea Dragon 2500F.
We’d start with SeaLife Sea Dragon 2500F. Our simple flood-light choice, with three power levels and a stated hour at full output. Choose Heinrichs Weikamp hw Video instead if its strengths are a better match: we like hw Video for broad scene coverage and a protected rotary control, especially when a narrow beam would frustrate the shot.
Which one suits you?
SeaLife Sea Dragon 2500F
Our simple flood-light choice, with three power levels and a stated hour at full output. 2,500 lumens gives less output headroom than the larger lights here.
Get to know this model →Heinrichs Weikamp hw Video
We like hw Video for broad scene coverage and a protected rotary control, especially when a narrow beam would frustrate the shot. Its 1.1 kg weight and dedicated charging connection are real packing compromises.
Get to know this model →Specifications side by side
The details that matter, side by side. “Check with the brand” means we have not confirmed that detail.
| Detail | SeaLife Sea Dragon 2500F | Heinrichs Weikamp hw Video |
|---|---|---|
| OutputCheck with the brand | 2500 lumens | Check with the brand |
| Beam | 120° in air; 90° underwater | 170° |
| ColourCheck with the brand | 5000 K; CRI 90 | Check with the brand |
| Rated runtimeCheck with the brand | 60 minutes full / 120 half / 240 quarter | Check with the brand |
| PackageCheck with the brand | SL671 tray and grip; SL6712 head-only | Check with the brand |
| Output evidenceCheck with the brand | Check with the brand | At least 5500 lm measured, manufacturer claim |
| Colour temperatureCheck with the brand | Check with the brand | 4900 K |
| BatteryCheck with the brand | Check with the brand | 85 Wh Li-ion |
| Stated runtimeCheck with the brand | Check with the brand | 45 min at top setting; 4 h at 20 W |
| Dimensions and weightCheck with the brand | Check with the brand | 78 × 190 mm; 1.1 kg |
| Depth ratingCheck with the brand | Check with the brand | 200 m |
Showing all 11 specification rows.
What the differences mean when you buy
Continuous output and coverage
SeaLife Sea Dragon 2500F
- Output
- 2500 lumens
- Beam
- 120° in air; 90° underwater
Heinrichs Weikamp hw Video
- Beam
- 170°
Start with the mode used while recording. Burst and time-limited boost values are not continuous output. Compare coverage on the same underwater or in-air basis and consider the lens you use. More total lumens do not automatically mean better subject illumination or a more even beam across a wide-angle frame.
Colour and control choices
SeaLife Sea Dragon 2500F
- Colour
- 5000 K; CRI 90
Heinrichs Weikamp hw Video
- Colour temperature
- 4900 K
Colour temperature, colour-rendering claims and red or spot modes serve different purposes. Compare the mode you actually plan to shoot, including how it changes runtime. Where a source has conflicting CRI or output figures, resolve the discrepancy before using it to justify the purchase. Test the camera’s white-balance workflow rather than assuming one setting fixes every scene.
Battery, runtime and rig balance
SeaLife Sea Dragon 2500F
- Rated runtime
- 60 minutes full / 120 half / 240 quarter
- Package
- SL671 tray and grip; SL6712 head-only
Heinrichs Weikamp hw Video
- Battery
- 85 Wh Li-ion
Budget output over an actual shooting session, including repeat dives and access to charging. Compare head-only and complete kits separately, checking trays, grips, adapters and battery contents. Land weight and in-water weight answer different questions; conflicting entries should remain unresolved until the manufacturer clarifies the assembled configuration.
A closer look at both
Sea Dragon 2500F
The 2500F is a broad photo and video light supplied with a Flex-Connect single tray, grip and case. SeaLife specifies 2500 lumens, a 90° underwater beam and CRI 90 at 5000 K. A separate head-only version suits photographers who already own compatible mounting parts.
What we like
Our simple flood-light choice, with three power levels and a stated hour at full output.
What would make us think twice
2,500 lumens gives less output headroom than the larger lights here.
More about the Sea Dragon 2500F →hw Video
The hw Video is a wide-angle underwater video light built around a POM and aluminium housing. Its 170° beam and protected rotary control suit broad scene illumination rather than a tight signalling spot. The manufacturer distinguishes the LED’s nominal 8500 lumens from at least 5500 lumens measured from the light in an integrating sphere.
What we like
We like hw Video for broad scene coverage and a protected rotary control, especially when a narrow beam would frustrate the shot.
What would make us think twice
Its 1.1 kg weight and dedicated charging connection are real packing compromises.
More about the hw Video →Four checks before you place an order
- Match the light’s documented continuous beam and output mode to the camera and intended shooting role.
- Confirm the runtime at that exact mode, keeping burst and reduced-power claims separate.
- Build a complete parts list for trays, arms, clamps, adapters, batteries and chargers.
- Check colour settings and controls on the actual camera rig, and resolve any source conflicts before buying.
Ask for a quote for the complete kit, including the accessories you need. That makes the price comparison much more useful.
Price, accessories and owning the equipment
A head-only price cannot be compared fairly with a kit that includes a tray, grip or mounting components. Include the cost and availability of a spare battery and compatible charger, and check the practical charging time between sessions. Existing accessories should be confirmed compatible by part number.
If upgrading, identify whether the limitation is coverage, usable continuous output, colour control or battery logistics. Buying a larger light can change handling and rig balance. Follow the manufacturer sealing, charging and battery-transport guidance; published output does not establish that a light is suitable as your primary dive-safety light.
How we scored these models & further reading
These are our subjective buying scores out of 100. We weigh the usefulness of the features, the intended diving or carrying job, and the compromises involved in owning the gear. They are not laboratory measurements, safety grades or customer averages. The verdict applies to the two named models, not everything either brand makes.
90–100: one of our first choices for the stated job. 80–89: a strong option with trade-offs. 70–79: a more specific fit. A different fit, camera, valve or dive plan can change which one you should buy.
SeaLife Sea Dragon 2500F
Product details and further reading →Heinrichs Weikamp hw Video
Product details and further reading →Questions worth settling
Can I compare the number in the model name?
Only after checking what it represents. Some models use a normal continuous output while others advertise a Turbo, burst or short boost value. Compare the documented recording mode, coverage and runtime rather than assuming the name is a standard measurement.
Which is the better buy for this particular comparison?
SeaLife Sea Dragon 2500F: 2,500 lumens gives less output headroom than the larger lights here. Heinrichs Weikamp hw Video: Its 1.1 kg weight and dedicated charging connection are real packing compromises.
Our pick is where we would start. Choose the other model if its fit or features better match your setup—especially where a camera, valve, boot or exposure suit needs an exact match.
