BLUDIVE BD42 2500LM 618M Dive Torch 150m Underwater With 21700 Battery
- $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 and 1.9 hours on High. 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 light 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
Bludive Series: BD42 vs BD40 Pro
Both are professional dive lights, but they serve different underwater missions. Choose the one that fits your diving style.
| Feature | 🌊 BD42 (This Item) | BD40 Pro |
|---|---|---|
| Beam Angle Profile | 4° Super Focused Spot | 8° General Spot Beam |
| Max Brightness | 2500 Lumens | 3000+ Lumens |
| Switch Type | Stainless Steel Side Switch | Magnetic Rotary Switch |
| Primary Advantage | Cuts through murky water & reduces backscatter | Broader area illumination & simple rotation |
Engineered for the Depths
4° Focused Beam & 2500 Lumens
Powered by the Luminus SFT42R LED, the BD42 pushes out 2500 lumens. The precision SMD reflector, paired with an AR-coated 4mm tempered lens, provides a highly concentrated 4° narrow beam.
This intense focus translates to an incredible 618-meter throw, making it perfect for penetrating murky waters and signaling over long distances.
Intelligent Switch & Auto-Lock Safety
The desired mode is easily selected via the stainless steel side switch. The built-in power indicator displays accurate battery status (Green: 100%-30%, Red: 30%-5%) at all times.
To ensure ultimate safety, the flashlight features an Automatic Lock Function. If turned off for 3 minutes without operation, it locks automatically to prevent accidental activation in your dive bag.
Premium LG Cell & Extended Runtime
Equipped with a high-capacity 21700 5000mAh Lithium battery (premium LG Cell), the BD42 offers reliable runtimes: 1.9 hours on High mode and up to 7 hours on Low.
The intelligent circuit includes Mode Memory, reverse polarity protection, and an over-discharge downshifting function to prevent battery damage when power is low.
Dive Scenarios
Engineered for extreme environments. See how the BD42 performs under the waves.
🌊 Deep Sea Exploration
Built tough with aircraft-grade aluminum. The true 150-meter water pressure resistance rating ensures it serves perfectly as a primary or backup light for deep technical dives.
Technical Specifications & Box Contents
Technical Specifications ⚙️
What's Inside the Box 📦
- 1 × Bludive BD42 Torch
- 1 × 5000mAh 21700 Battery
- 1 × Battery Charger
- 1 × Diving Lanyard
- 3 × Spare O-rings
- 1 × User Manual
Dive Deeper With Confidence
Don't let murky waters ruin your dive. Equip yourself with the Bludive BD42 and cut through the darkness with a laser-like 4° beam and 2500 lumens of raw power.
🛒 SELECT OPTIONS & ADD TO CARTSecure Checkout | Official Warranty
Frequently Asked Questions (FAQ)
Why use a narrow beam underwater?
In water with particles, wide beams can reflect light toward you (backscatter). The BD42's extremely tight 4° beam helps you focus on your target instead, piercing through murky environments.
Is it suitable for deep diving?
Yes, it’s highly rated to 150 meters (IPX-8) and can be used as a primary or reliable backup light for both recreational and deep technical diving.
Will the switch work with gloves?
Absolutely. The stainless steel side switch is designed to provide clear tactile feedback, ensuring easy operation even when wearing thicker dive gloves.
How should I maintain it?
Always rinse the flashlight with fresh water after saltwater use, dry it thoroughly, and regularly check and lubricate the O-rings with silicone grease to maintain the watertight seal.
| 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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