BLUDIVE BD42 2500lm 618m Narrow Beam Diving Flashlight Scuba Light
- $129.99
$136.99- $129.99
- Unit price
- per
2500LM POWER & 4° ULTRA-FOCUSED SPOT: Engineered with an advanced Luminus SFT42R LED that unleashes 2500 lumens focused into a laser-like 4° narrow beam. Pierces flawlessly through murky underwater environments and significantly reduces backscatter for crystal-clear target spotting.
AUTO-LOCK SAFETY & SMART INDICATOR: Features an ergonomic stainless steel side switch with an Automatic Lock function that engages after 3 minutes of inactivity to prevent accidental activation in your gear bag. Integrated with a real-time LED power indicator for clear battery tracking.
PREMIUM LG CELL & 7H RUNTIME: Driven by a high-capacity 21700 5000mAh battery (Premium LG Cell), yielding up to 7 hours of reliable runtime on Low mode. Built with smart mode memory and an over-discharge downshifting circuit to fully protect battery health.
150M DEEP DIVING WATERPROOF: Machined from heavy-duty aircraft-grade aluminum alloy paired with a thick 4mm AR-coated tempered glass lens. Rated for a true 150-meter (492 ft) water pressure resistance, serving as the ultimate primary or backup diving flashlight for deep technical diving.
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Warranty
Most flashlights can directly get 5 years warranty; battery and accessories get 1 year warranty.
Note
Any questions, please email to info@sperasflashlight.com
Benchmarking: BD42 High-Focused Diving Flashlight vs. BD40 Pro
Choose the diving flashlight that fits your specific deep-sea diving style.
| Key Specifications | 🔥 BD42 (This Item) | BD40 Pro |
|---|---|---|
| Beam Angle Profile | 4° Super Focused Spot | 6.3° General Spot Beam |
| Max Brightness | 2500 Lumens | 3000+ Lumens |
| Switch Type | Stainless Steel Side Switch | Magnetic Rotary Switch |
| Primary Advantage | Cuts through murky water | Broader area illumination |
Advanced Features of the BD42 High-Focused Scuba Dive Light
4° Narrow Beam for High-Focused Underwater Illumination
Powered by the Luminus SFT42R LED, the BD42 narrow beam dive torch pushes out 2500 lumens. The precision SMD reflector and AR-coated 4mm tempered lens provide a concentrated 4° narrow beam.
This intense focus translates to an incredible 618-meter throw, making it the perfect underwater search light for penetrating murky waters and signaling dive partners.
Intelligent Auto-Lock Switch for Safe Scuba Diving
Select modes easily via the premium stainless steel side switch. The built-in power indicator displays accurate battery status (Green: 100%-30%, Red: 30%-5%).
To ensure safety, this diving flashlight features an Auto-Lock Function. If off for 3 minutes without operation, it locks automatically to prevent accidental battery drain.
21700 Battery Powered for Extended Deep Sea Diving
Equipped with a high-capacity 21700 5000mAh Lithium battery, the BD42 offers highly reliable runtimes: 1.9 hours on High mode and up to 7 hours on Low.
The intelligent circuit of this technical diving flashlight includes Mode Memory, reverse polarity protection, and an over-discharge downshifting function.
150m Waterproof Rating for Technical Deep Sea Exploration
Engineered for marine environments with aircraft-grade aluminum and double O-ring seals, the BD42 boasts a true 150-meter water pressure resistance rating.
It serves flawlessly as a heavy-duty primary or backup high-focused diving flashlight for deep technical dives and underwater cave exploration.
Diving Flashlight Technical Specifications & Box Contents
Detailed Specifications ⚙️
The BLUDIVE BD42 high-focused diving flashlight is engineered with an aerospace-grade AL6061-T6 aluminum housing and a robust 4mm AR-coated tempered glass lens for maximum pressure resistance.
📦 Inside the Box
- 1 × Bludive BD42 Diving Flashlight
- 1 × 5000mAh 21700 Battery
- 1 × Battery Charger
- 1 × Diving Lanyard
- 3 × Spare O-rings
- 1 × User Manual
Equip the Ultimate High-Focused Narrow Beam Diving Flashlight
Don't let murky waters ruin your technical dive. Upgrade your scuba gear with the Bludive BD42 and cut through the darkness with a laser-like 4° narrow beam and 2500 lumens.
🛒 SELECT OPTIONS & ADD TO CARTSecure Checkout | Official Warranty
Frequently Asked Questions About Scuba Dive Lights
Why is a narrow beam diving flashlight better for murky water?
In turbid or murky environments, wide flood beams cause "backscatter" (light reflecting off suspended particles, blinding the diver). A narrow beam, like the 4° super-focused spot on the BLUDIVE BD42, punches directly through sediment and murky water, drastically reducing glare and allowing you to identify objects or signal partners up to 618 meters away.
What safety features should a reliable scuba diving flashlight have?
Deep sea exploration requires fail-safes against accidental battery drain and water intrusion. The BLUDIVE BD42 is equipped with an intelligent Auto-Lock function that activates after 3 minutes of inactivity. Additionally, its aerospace-grade aluminum body and double O-ring seals guarantee a true 150-meter waterproof rating for extreme environments.
How long does a 21700 battery last during a deep dive?
A high-capacity 21700 battery offers significantly longer dive times compared to standard 18650 cells. Powered by an included 5000mAh 21700 lithium battery, the BLUDIVE BD42 provides a highly reliable 1.9 hours of continuous runtime on its maximum 2500-lumen setting, and up to 7 hours on low mode, ensuring you have ample light for extended exploration.
Can I easily operate the flashlight switch while wearing thick diving gloves?
Yes. The BLUDIVE BD42 features a prominent stainless steel side switch designed for excellent tactile feedback. It ensures smooth mode transitions, easy unlocking, and quick access to the built-in LED battery indicator, even when you are wearing 5mm or 7mm thick neoprene diving gloves.
Does this diving flashlight come with a battery and charger?
Absolutely. The BLUDIVE BD42 arrives ready for your next dive. The complete retail package includes the heavy-duty diving flashlight, a premium 5000mAh 21700 battery, a dedicated single-slot battery charger, a durable diving lanyard, and spare O-rings for routine maintenance.
| Model | BLUDIVE BD42 |
|---|---|
| Light Source | Luminus SFT42R |
| Max Output | 2500 lumens |
| Max Beam distance | 618 meters |
| Max Intensity | 95,760cd |
| Max running time | 7H for low mode |
| Modes | high-low-strobe |
| Switch | Stainless Steel Side Switch |
| Compatible Battery | 1 pce 21700 Li-ion Lithium |
| Water Resitance | IPX-8(150 meters underwater) |
| Impact Restance | 1.5 meters |
| Dimensions | 149.5(Length)*37(Head)*27(Tube)mm |
| Weight | 5.07oz/144g(battery excluded) |
| Body Material | Aerospace 6061 Aluminium |
| Application | Diving, Underwatert, Outdoor, Camping, Hiking, Everyday Carry |
| Note: The above data has been measured in accordance with international flashlight testing standards ANSI/NEMA FL1 using BLUDIVE 3.7V/ 5000mAh battery under laboratory conditions. | |
 |
BLUDIVE BD42.pdf | Download |
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