Bigblue B450 Manual

The Bigblue B450 is a professional-grade underwater video lighting system designed for divers and underwater videographers. Featuring high-intensity LED lights with adjustable brightness, wide beam angle, rechargeable battery system, durable aluminum housing rated to 100m depth, multiple mounting options, and intuitive controls. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: High-power LED array, Aluminum housing, Control buttons, Battery compartment, Charging port, Mounting ball.

Feature	Description
LED Output	4500 lumens maximum brightness
Beam Angle	Adjustable from 80° to 120°
Battery Life	Up to 120 minutes at full power
Depth Rating	100 meters / 328 feet
Charging Port	Waterproof magnetic charging connector
Mounting System	Standard 1-inch ball mount with locking mechanism
Power Button	Turns light on/off with press-and-hold
Mode Button	Cycles through brightness levels and strobe modes
Battery Indicator	4-LED status display for battery level
Thermal Management	Passive cooling fins for heat dissipation

Installation & Setup

Unpack and inspect all components. Ensure O-rings are clean and properly seated.

1. Install battery: Open battery compartment, insert battery with correct polarity.
2. Charge battery: Connect magnetic charger to port; charge until indicator shows full.
3. Mount light: Attach to camera tray or handle using ball mount; tighten securely.
4. Test operation: Press power button to verify light functions before diving.

WARNING! Always test light function and battery charge before underwater use. Ensure all seals are properly closed.

First-Time Use

Fully charge battery before first use. Familiarize yourself with controls above water.

1. Charge battery: Initial charge requires 4-6 hours for optimal performance.
2. Power on: Press and hold power button for 2 seconds until LED illuminates.
3. Adjust brightness: Press mode button to cycle through 5 brightness levels.
4. Select mode: Double-press mode button to access strobe and SOS modes.
5. Mount securely: Ensure mounting ball is tightened to prevent rotation.

CAUTION! Do not open housing underwater. Always check O-rings for debris before sealing.

Specifications

• Light Output: 4500 lumens maximum.
• LED Type: CREE XHP70.2 LED.
• Beam Angle: Adjustable 80°-120°.
• Color Temperature: 5000K daylight balanced.
• Battery: 7.4V 5200mAh Li-ion rechargeable.
• Charging Time: 4-6 hours (full charge).
• Operating Time: 45-120 minutes depending on brightness.
• Depth Rating: 100m / 328ft.
• Dimensions: 150mm length × 80mm diameter.
• Weight: 850g in air, 350g in water.

Controls and Operation

Two-button control system: Power button and Mode button. Battery indicator shows remaining charge.

Power Button: Press and hold 2 seconds to turn on/off. Single press to lock/unlock controls.

Mode Button: Single press cycles brightness levels (Low, Medium, High, Max, Turbo). Double press accesses special modes (Strobe, SOS). Long press returns to normal mode.

Battery Indicator: 4 LEDs show battery level (25% per LED). Blinking red indicates low battery.

Memory Function: Remembers last used brightness setting when powered off.

Mounting Options

Standard 1-inch ball mount compatible with most underwater camera systems.

1. Camera tray mounting: Attach ball to tray using 1/4"-20 screw.
2. Handle mounting: Use included adapter for handlebar mounting.
3. Flex arm mounting: Compatible with standard flex arm systems.
4. Double ball mount: For precise positioning with two B450 lights.

Tip: Apply silicone grease to ball mount for smooth adjustment and corrosion prevention.

Battery & Charging

Rechargeable Li-ion battery with magnetic charging system.

1. Charging: Connect magnetic charger to port; red LED indicates charging, green indicates full.
2. Battery removal: Open compartment, slide battery out carefully.
3. Storage: Store battery at 50% charge if not used for extended periods.
4. Replacement: Use only Bigblue B450 compatible batteries.
5. Battery indicator: Check LED status before each dive.

WARNING! Use only provided charger. Do not charge battery immediately after diving (allow to reach room temperature).

Maintenance & Care

Rinse with fresh water after each saltwater use. Regular O-ring maintenance is critical.

1. Cleaning: Rinse exterior with fresh water; dry thoroughly.
2. O-ring care: Clean with fresh water, inspect for damage, lubricate with silicone grease.
3. Battery contacts: Keep clean and dry.
4. Lens cleaning: Use microfiber cloth; avoid abrasive materials.
5. Storage: Store in cool, dry place with battery removed.

CAUTION! Never use petroleum-based lubricants on O-rings. Always test in shallow water after maintenance.

Safety Information

Never look directly at light at close range. Do not open housing underwater. Use only as intended.

• Eye safety: Do not stare directly at light source.
• Depth limits: Do not exceed 100m / 328ft depth rating.
• Temperature: Operating range 0°C to 40°C (32°F to 104°F).
• Transport: Remove battery for air travel.
• Disposal: Recycle battery according to local regulations.

Warranty & Support

2-year limited warranty against defects in materials and workmanship. Warranty void if housing is opened by unauthorized personnel or damaged by misuse. For support, visit www.bigbluelight.com or contact [email protected]. International support available in English, Chinese, and Spanish.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Light won't turn on	Battery dead or improperly installed	Charge battery; ensure correct orientation in compartment.
Dim output	Low battery or thermal protection	Charge battery; allow light to cool if overheated.
Water in housing	Damaged or dirty O-ring	Immediately remove battery; dry components; replace O-ring.
Charger not working	Dirty contacts or faulty charger	Clean magnetic contacts; try different power outlet.
Mode button unresponsive	Controls locked	Press power button once to unlock controls.
Overheating	Extended use at maximum brightness	Reduce brightness level; allow to cool.

Reset: Remove battery for 30 seconds to reset electronics.

Service: [email protected]; www.bigbluelight.com