-
DiveCatalog.com Quick Dry Multi Accessory Dive Gear Hanger for Boots, Gloves, Hood
$22.95$2.30
-
Nocturnal Lights Ball Joint Adapter for Underwater Ball Joint Arm Strobe and Lighting Systems
$19.99$2.00
-
Nocturnal Lights Buoyancy & Protective Sleeve for the SLX Underwater LED Lights
$19.99$2.00
-
Nocturnal Lights YS Arm Adapter for M700 Lights ADP.M7YS
$19.99$2.00
-
Nocturnal Lights Large Hand Mount with 1.75-2 Light Slot HM.LG
$19.99$2.00
-
Nocturnal Lights Medium Hand Mount with 1.385-1.625 Light Slot HM.MED
$19.99$2.00
-
Nocturnal Lights Small Universal Hand Mount with Two 1-1.25 Slots HM.SM
$19.99$2.00
-
DiveCatalog DIN Cap for 1st Stage (Female) for Scuba Diving Tanks - Scuba Essentials
$19.95$2.00
-
DiveCatalog Comfo-Bite Silicone Mouthpiece for Scuba Diving Regulators Black
$19.95$2.00
-
DiveCatalog Essentials - BCD and Regulator Hanger for Scuba Diving
$19.95$2.00
-
DiveCatalog Scuba Essentials - Wetsuit Hanger for Scuba Diving, Snorkeling, and Surfing
$19.95$2.00
-
Nocturnal Lights 45 Degree Ball Joint Adapter with T-base Slot BJADAPTER.TBASE45
$18.99$1.90
-
DiveCatalog.com Underwater Pointer Tool
$18.95$1.90
-
DiveCatalog Hose Clamp for Scuba Diving - Scuba Essentials
$17.95$1.80
-
DiveCatalog Neoprene Mask Strap Cover
$17.00$1.70
-
Nocturnal Lights 90 Degree Ball Joint Adapter with T-base Slot BJADAPTER.TBASE90
$15.99$1.60
-
Nocturnal Lights 2 YS Flex Arm Extra Short FLEXARM.YS2
$15.99$1.60
-
DiveCatalog.com Basic Black Silicone Snorkel
$14.95$1.50
-
DiveCatalog Silicone Scuba Octopus Mouthpiece with Color Tab & Regulator Tie – Comfortable, Leak-Free Dual Color
$14.95$1.50
-
DiveCatalog Silicone Mouthpiece Replacement w/ installation - Scuba Essentials
$14.95$1.50
-
DiveCatalog Rubber Tank Valve Protector for Scuba Diving Tanks - Scuba Essentials
$11.95$1.20
-
DiveCatalog.com Regulator Necklace
$11.95$1.20
-
DiveCatalog.com Water Activated LED Signal Light - Green
$11.95$1.20
-
DiveCatalog x Stream2Sea Mask Defog, Flip Cap Bottle, 2 oz
$9.95$1.00
-
DiveCatalog Fin Strap and Scuba Dive Accessory Holder Scuba Accessory Essentials
$9.95$1.00
-
DiveCatalog.com Dry Box with Lanyard
$9.95$1.00
-
DiveCatalog x Stream2Sea Mask Defog Spray, 2 oz
$9.95$1.00
-
DiveCatalog Female Quick Release Clip with Bungee cord for Scuba Accessory Essentials
$8.99$0.90
-
DiveCatalog.com Fin Holder
$7.95$0.80
-
DiveCatalog.com Scuba Mouthpiece Cover
$7.95$0.80
-
Multi-Purpose Clip with Male and Female Quick Release Clip and Bungee Cord Scuba Accessory Essentials by DiveCatalog
$5.95$0.60
-
DiveCatalog Scuba Essentials - PVC Tank Valve Protector for Scuba Diving Tanks
$5.95$0.60
-
Whistle with Lanyard in Orange by DiveCatalog
$5.00$0.50
-
Nocturnal Lights 7 Ultra Slim Underwater Camera Tray TRAY.SLIM5
$3.99$0.40
-
DiveCatalog.com Stainless Steel 2 Inch Webbing Keeper with Serrated Teeth Weights
$1.95$0.20
-
DiveCatalog.com Weight Keeper Stopper - Black
$1.45$0.15
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Product Information
The SeaLife Sea Dragon 2300F COB P/V Light Head (SL6821) is the light head component of SeaLife's Sea Dragon 2300F photo-video system: a COB LED array (CREE CMB1825) that delivers 2300 lumens at 5000K with a CRI of 80, a 90 degree underwater beam and a depth rating of 330 feet (100 meters). It is built for divers and underwater shooters who already own a Flex-Connect tray or grip and want to add or replace a light head.
Who it is for
This light head suits action camera, smartphone and compact camera users shooting video or stills underwater, plus divers who want a wide, even fill light for reef and wreck scenes. The wide 120 degree topside and 90 degree underwater beam spreads light evenly across the subject with no hot spots, and the regulated circuitry keeps output steady instead of fading as the battery drains. Three output levels (100%, 50%, 25%) and an emergency signal mode with a 1 second blink interval and SOS Morse code are included.
Key details
- 2300 lumens maintained at full power, 5000K, CRI 80
- Beam angle: 120 degrees topside, 90 degrees underwater
- Depth rated to 330 feet (100 meters)
- One button control for power and brightness
- Runtime: 80 minutes full, 160 minutes half, 320 minutes quarter power
- Powered by a 7.4V, 3400 mAh, 25Wh lithium-ion battery; 170 minute charge time
- Anodized aluminum head with fiber-reinforced polycarbonate body; 13 oz (370 g) with battery
- Safety pressure release valve, thermal protection circuitry and an O-ring sealed battery compartment
Compatibility and sizing
The 2300F works with the SeaLife Flex-Connect modular mounting system, including ball joints, YS mounts and cold shoes, as well as standard 1/4-20 tripod mounts and action camera mounts. Head-only dimensions are 5.1 in x 2.2 in x 4.1 in, and the light is negatively buoyant at -94 grams underwater. Complete kit versions are sold as SL682 with a 5 inch Micro Tray and SL682S with an 8 inch Single Tray.
DiveCatalog.com is an authorized SeaLife dealer and a real dive shop in Irvine, California since 2003. Call 888-701-4017 or chat with us if you want help confirming tray, arm or camera compatibility before you order.
- 2300 lumen COB LED CREE CMB1825 array maintains full output at 5000K color temperature with a CRI of 80.
- Wide, even beam 120 degrees topside and 90 degrees underwater illuminates the subject with no hot spots.
- Depth rated to 330 feet (100 meters) for underwater photo and video work.
- One button control cycles power and brightness through 100%, 50% and 25% output levels.
- Emergency signal mode with a 1 second blink interval and SOS Morse code.
- Regulated circuitry prevents dimming as the battery depletes, so output stays consistent.
- Long runtimes 80 minutes at full power, 160 minutes at half and 320 minutes at quarter power.
- Runs on SeaLife's 7.4V, 3400 mAh, 25Wh lithium-ion battery (170 minute charge time); battery sold with the complete kits.
- Flex-Connect compatible mounts to SeaLife Flex-Connect trays, grips, ball joints, YS mounts and cold shoes.
- Durable build anodized aluminum light head with a fiber-reinforced polycarbonate body, 13 oz (370 g) with battery.
- Sealed and protected waterproof battery compartment with protective O-ring, safety pressure release valve and thermal protection circuitry.
- 35,000 hour bulb life from the COB LED array.
| Model | SL6821 (Sea Dragon 2300F light head) |
| Brightness | 2300 lumens (maintained at full power) |
| Color Temperature | 5000K |
| Color Rendering Index (CRI) | 80 |
| Beam Angle | 120 degrees topside / 90 degrees underwater |
| Light Source | COB LED array (CREE CMB1825) |
| Bulb Life | 35,000 hours |
| Brightness Levels | 100%, 50%, 25% plus emergency signal mode |
| Depth Rating | 330 feet (100 meters) |
| Battery Type | Lithium Ion 7.4V, 3400 mAh, 25Wh |
| Runtime (Full Power) | 80 minutes |
| Runtime (Half Power) | 160 minutes |
| Runtime (Quarter Power) | 320 minutes |
| Charge Time | 170 minutes |
| Weight | 13 oz (370 g) light head with battery |
| Dimensions (Head Only) | 5.1 in x 2.2 in x 4.1 in |
| Buoyancy | Negative (-94 grams underwater) |
| Body Material | Anodized aluminum head with fiber-reinforced polycarbonate |
| Mounting | Flex-Connect system, standard 1/4-20 tripod mounts, action camera mounts |
| Safety Features | Pressure release valve, thermal protection circuitry, O-ring sealed battery compartment |
| Kit Versions | SL682 (5 in Micro Tray), SL682S (8 in Single Tray) |
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
How long does the Sea Dragon 2300F run on one charge?
Runtime is 80 minutes at full 2300 lumen output, 160 minutes at 50% power and 320 minutes at 25% power. The light uses a 7.4V, 3400 mAh, 25Wh lithium-ion battery that recharges in about 170 minutes. Regulated circuitry holds the output steady rather than letting it dim gradually as the battery depletes, so brightness stays consistent through the dive.
What is the difference between the SL6821 light head and the SL682 and SL682S kits?
SL6821 is the Sea Dragon 2300F light head on its own, for divers who already own a Flex-Connect tray or grip. The complete kits add mounting and charging gear: SL682 ships with a 5 inch Flex-Connect Micro Tray and SL682S with an 8 inch Single Tray, plus a grip, 25Wh battery, charger and accessories. Call 888-701-4017 if you want the exact contents confirmed before ordering.
What cameras and mounts does the Sea Dragon 2300F work with?
It mounts through the SeaLife Flex-Connect modular system, including trays, grips, ball joints, YS mounts and cold shoes. It also works with standard 1/4-20 tripod mounts and action camera mounts. That makes it suitable for action cameras, smartphones and compact digital cameras. The head alone measures 5.1 in x 2.2 in x 4.1 in and weighs 13 oz (370 g) with the battery.
How deep can the Sea Dragon 2300F be taken?
The Sea Dragon 2300F is depth rated to 330 feet (100 meters). The anodized aluminum head and fiber-reinforced polycarbonate body are backed by a waterproof battery compartment with a protective O-ring, a safety pressure release valve and thermal protection circuitry. As always, inspect and lubricate the O-rings before every dive to keep the seal reliable.
