One Light for All Dives!

The XTAR D40 ZOOM is a professional-grade dive light engineered to meet the diverse lighting demands of underwater exploration. Whether you’re hunting lobsters off the California coast, navigating tight cave systems, enjoying a night dive, or filming underwater footage, the D40 ZOOM adapts to every scenario.

With a continuously adjustable beam angle from an ultra-narrow 4° to an ultra-wide 77°, it allows seamless transitions between focused spotting and broad flood lighting — offering true versatility in a single device.

Paired with a high-capacity USB-C rechargeable 21700 battery, it eliminates the need for external chargers — perfect for liveaboard trips or extended diving adventures. Combining powerful output, long runtime, and intuitive control, the D40 ZOOM is ideal for recreational divers, technical divers, and underwater photographers alike.

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.
• 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.

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.

• 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.

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

High
Output: 1600 lumens
Runtime: 2.3hrs

Mid
Output: 800 lumens
Runtime: 3.5hrs

Strobe
Output: 800 lumens
Runtime: 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）x φ30（Tube） x φ52（Head）
• Net Weight: 350g (Without the battery)