The Kraken Hydra 20000 WRGBU delivers 20,000 lumens turbo and 17,000 lumens constant — 60 minutes at depth. CRI 90, 120° beam, WRGBU modes, USB-C PD charging. The highest-output light in the Hydra lineup.
Description
20,000 Lumens. The New Flagship.
The Hydra 20000 is the new flagship — the successor to the Hydra 18000 and the highest-output light in the Hydra lineup. Same proven platform, same build quality, same battery system. If you’re building a serious rig, this is where the range tops out.
20,000 lumens in turbo. 17,000 constant for a full 60-minute dive. The name is the number — push it to its ceiling and you’re at 20K. Wide wrecks, dark caverns, night dives in poor visibility: this is the light built for when output matters most.
What Makes It Different
20,000 lumens turbo. 17,000 constant. Turbo mode pushes the light to 120% — 20,000 lumens for 45 minutes. For most dives, 100% constant gives you 17,000 lumens and a full 60-minute burn. The OLED display shows real-time remaining run time at whatever level you’re running so you’re never caught short.
Burst mode is separate from turbo. Connect a fiber optic cable from the burst port to your camera’s built-in flash and the Hydra 20000 fires a high-output pulse timed to your shutter — flash-synchronized triggering for still photography, no manual triggering required. The burst port is labeled on the light body.
CRI 90 at 5600K. Lumens get you brightness. CRI 90 gets you accuracy. At depth, a CRI 80 light washes out reds and flattens colors — you’re correcting in post and never quite getting there. CRI 90 means what you shoot is what was actually there. What Is CRI in Underwater Video Lighting? →
120° beam. Built for wide-angle — covers a full frame without hot spots or dark corners. Learn more about beam angle →
WRGBU modes with stepless dimming. White for video and photo. Red for night diving — invisible to most marine life. Blue and UV for fluorescence work. Green for low-visibility water. Every mode runs on the same dial. No menus.
Burn Time
- 60 minutes at 100% constant (17,000 lumens)
- 45 minutes at 120% turbo (20,000 lumens)
Charging — USB-C PD
Charges via USB-C Power Delivery (USB-C PD) — not a standard USB-C cable. A USB-C PD charger is required. Charge time approximately 7 hours. A multi-port USB-C PD adapter is included. USB-C vs USB-C PD: what’s the difference →
Battery
The 14.4V / 12,800mAh battery is transport-safe for air travel. It’s the same battery used in the Spectrum 25000 and Abyss 20000 — one spare covers all three lights. Replacement battery →
On Your Rig
Negatively buoyant. Add a KR-FB02 float collar for neutral trim — slides directly over the light body, no tools. Compatible with the KR-RC02 remote for hands-free mode switching.
Guides & Resources
- Best Underwater Video Lights 2026: Hydra, Abyss & LTD Compared
- Hydra Series Comparison & Buyers Guide
- How to Choose an Underwater Video Light
- Colour Temperature in Underwater Video Lighting
- USB-C Rechargeable Dive Lights: Travel Guide