Beam Angle 4°~ 77°
Max 1600lm Output
USB-C 21700 Battery
Beam Angle
4°~ 77°
Max
1600lm
USB-C
21700 Battery
One Light for All Dives!
Main Features
Main Features
Adjustable Beam 4°- 77°
One light replaces both a spot and flood light. Whether signaling exploring a crevice, or video shooting just twist the bezel to adjust the beam for the job.
Adjustable Beam 4°- 77°
One light replaces both a spot and flood light. Whether signaling exploring a crevice, or video shooting just twist the bezel to adjust the beam for the job.
Max 1600lm, 3 Lighting Mode
Choose from multiple brightness levels or strobe mode for emergencies or signaling. Max 700m beam throw.
High 1600 LM：2.3 hrs
Easily handle silt-heavy or
low-visibility conditions.
High 1600 LM：2.3 hrs
Easily handle silt-heavy or
low-visibility conditions.
High 1600 LM：2.3 hrs
Easily handle silt-heavy or
low-visibility conditions.
Max 1600lm, 3 Lighting Mode
Choose from multiple brightness levels or strobe mode for emergencies or signaling. Max 700m beam throw.
High 1600 LM：2.3 hrs
Easily handle silt-heavy or
low-visibility conditions.
Mid 800 LM：3.7 hrs
Balances brightness and runtime for longer dives.
Strobe 800 LM：7.3 hrs
To signal or deter aggressive
marine life in emergency.
No Charger, No Problem
Comes with a USB-C rechargeable 21700 battery. Just plug it in — no need to carry bulky chargers on dive trips.
No Charger, No Problem
Comes with a USB-C rechargeable 21700 battery. Just plug it in — no need to carry bulky chargers on dive trips.
Clear Power Indicator
Knowing the remaining power at a glance.
Solid Green: fully charged
Solid Red: 30 mins runtime left
Flashing Red: 10 mins runtime left
Clear Power Indicator
Knowing the remaining power at a glance.
Solid Green: fully charged
Solid Red: 30 mins runtime left
Flashing Red: 10 mins runtime left
Easy Operation, Locked Secure
The switch has clear tactile response even with thick gloves. Mechanical lock prevents accidental activation in your gear bag or underwater.
Easy Operation, Locked Secure
The switch has clear tactile response even with thick gloves. Mechanical lock prevents accidental activation in your gear bag or underwater.
🔵 Single Click
Switch between high 1600lm
and mid 800lm.
🔵🔵🔵 Long Press
Enter strobe mode (Single
click again to enter high
1600lm)
🔄 Turn Left 90°
Enter lock mode (The light
can be locked in any modes)
New Upgraded Temperature Control Tech
Built-in intelligent temperature control technology directly detects the LED temperature, effectively preventing overheating while extending both LED lifespan and flashlight runtime.
New Upgraded
Temperature Control tech
Built-in intelligent temperature control technology directly detects the LED temperature, effectively preventing overheating while extending both LED lifespan and flashlight runtime.
Built for 100m Depth Rating
You never have to worry about going too deep.
Built for 100m Depth Rating
You never have to worry about going too deep.
Compact Head, Better Camera Rig Balance
The lights head is significantly smaller than similar models, reducing front-heaviness when mounted on underwater camera arm tray system and ensuring better balance and stability underwater.
Compact Head,
Better Camera Rig Balance
The lights head is significantly smaller than similar models, reducing front-heaviness when mounted on underwater camera arm tray system and ensuring better balance and stability underwater.
Specifications
| Model | D40 Zoom | ||
| ANSI/NEMA FL1 | High | Mid | Strobe |
| Output | 1600 lumens | 800 lumens | 800 lumens |
| Runtime | 2.3hrs | 3.5hrs | 7.3hrs |
| Beam Angle | 4°- 77° | ||
| Max Beam Distance | 700m | ||
| Max Intensity | 122500cd | ||
| LED | Luminus | ||
| Color Temperature | 6500K | ||
| Color Rendering Index | 70 | ||
| Depth Rating | 100m underwater | ||
| Impact Resistance | 1.5m | ||
| Battery | 1* protected 21700 battery | ||
| Switch | Magnetic Press button with Mechanical Lock | ||
| Housing Material | Type III hard anodized aluminum alloy | ||
| Lens Materials | Tempered glass with anti-reflective coating | ||
| Storage Temp. | -20℃~40℃ | ||
| Dimensions (mm) | 194 (Length) × φ30 (Tube) × φ52 (Head) | ||
| Net Weight | 350g (Without the battery) | ||
Package
Package
D40 ZOOM Real-World Field Test
Over the past 14 months, the XTAR D40 ZOOM has been put through its paces by 14 independent testers across 13 countries. From 90-meter wreck dives in the UK to 26°C night dives in Greece, from Puget Sound's murky cold waters to Mount Gambier's tight cave systems — recreational divers, tech/cave divers, underwater videographers, and spearfishers have all weighed in.
Real-World Battery Life
Verified in extreme conditions — cold water, continuous use, multiple dives.
| Tester | Conditions | Result |
|---|---|---|
Dive Wise 🇺🇸 United States |
Burn-down test in water, high mode 1600lm | 2 hours 17 minutes (137 min) vs claimed 138 min |
Stanley Scuba 🇺🇸 United States |
Multiple dives, single charge | 3 dives completed, battery indicator still green |
Sean Elliott 🇦🇺 Australia |
2-hour cave/tech dive, high mode | No battery drain issues |
Hai Alex 🇩🇪 Germany |
Club testing over 3 months | High: 2.3h · Medium: 3.5h |
4° Ultra-Tight to 77° Wide Flood
Unmatched mechanical zoom versatility — from lightsaber-like penetration to wide-angle flood — in a single handheld torch.
| Tester | Conditions | Result |
|---|---|---|
Stanley Scuba 🇺🇸 United States |
Low-vis day dive & night dive | 4° beam cuts through darkness like a lightsaber |
Matthias Lebo 🇨🇭 Switzerland |
Local lake, underwater video | 4°–77° mechanical zoom |
Deep Wreck Diver 🇬🇧 United Kingdom |
90m wreck, pitch black | 4° ultra-tight beam performs exceptionally in complete darkness |
Dive Wise 🇺🇸 United States |
Seattle murky waters | 4° focus concentrates full power into narrow space |
Sean Elliott 🇦🇺 Australia |
Cave & open-water transitions | 4°–77° adapts seamlessly to changing environments |
D40 ZOOM vs The Competition
Direct comparisons against established brands in the dive light market.
| Tester | Comparison | Result |
|---|---|---|
Sean Elliott 🇦🇺 Australia |
D40 vs OrcaTorch ZD710 | D40: $129 · Orca: $190 |
Sean Elliott 🇦🇺 Australia |
D40 vs Big Blue | D40 has zoom; Big Blue doesn't |
Generations Below 🇺🇸 United States |
D40 vs Sofirn SD08 & OrcaTorch ZD710 | Orca gets tighter; Xtar is wider |
The Dive Hub 🇺🇸 United States |
D40 vs OrcaTorch & Big Blue | D40 at ~50% the price of mid-tier options like Orcatorch |
Durability & Build Quality
Rugged aluminum build, smart lockable switch, and thoughtful spare parts kit — built to last.
Unfiltered Feedback from the Field
14 independent testers across 13 countries who put the D40 ZOOM through real-world conditions — every single one recommended it.
Hai Alex
"If you're looking for a dive light, I can recommend this one without any hesitation."
Matthias Lebo
"It's a perfect companion for anyone with a compact underwater camera system."
Stanley Scuba
"The dive light feels durable... extremely bright... I love the zoom function."
Sean Elliott
"This is for recreational diving and basic tech diving... that's where this torch shines."
Deep Wreck Diver
"It does exactly what it says on the tin, and it does it at a really nice price."
Spearfishing Odyssey
"Ideal for every kind of diving. Overall, it's a durable and quality torch."
Dive Wise
"An excellent light for someone looking to buy their very first torch. The amount of tools this one package brings is immense."
The Dive Hub
"It's bright. It's adjustable. It's rugged. All at a price that's hard to beat."
The XTAR D40 ZOOM delivers reliable, versatile illumination across every major diving discipline — from recreational night dives to 90-meter tech wrecks — with a zoom mechanism no competitor matches, at a price that makes premium features accessible to all.
