Description
✅ Pros of the IRay Lumi H35
🔥 High-Resolution Thermal Sensor
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Uses a 640×512 resolution, 12μm thermal core for exceptional image clarity
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Outstanding NETD ≤18 mK sensitivity, detecting the slightest temperature differences even in fog, rain, or heavy brush
🔭 Long-Range Detection
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35 mm F/0.9 lens delivers superior detection out to 1,750 yards (approx. 1,600 meters)
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Great for hunting, surveillance, search and rescue, and tactical applications
🎥 Vivid Display + Real-Time Imaging
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Equipped with a 1024×768 AMOLED display for high contrast and sharp visuals
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50 Hz refresh rate ensures smooth tracking of moving targets with minimal lag
🎮 Advanced Image Processing
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Built-in Reality+ algorithms improve clarity during zoom and reduce noise, especially useful in digital magnification or complex terrain
🔋 Flexible Power Options
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Powered by a removable 18650 rechargeable battery
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Supports USB-C external power, making it field-friendly with backup options
🎥 Full Media Recording Suite
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Capable of video, audio, and still image recording
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Includes 32 GB internal storage, allowing plenty of space without the need for SD cards
📱 Wi-Fi Connectivity
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Offers Wi-Fi streaming and control via compatible mobile app
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Enables remote viewing, file transfer, and settings adjustment through smartphones or tablets
🎨 Multiple Viewing Palettes
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Includes customizable color modes: White Hot, Black Hot, Red Hot, Fusion, Violet, Crimson, Viridian
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Helps reduce eye fatigue and enhances target contrast based on environment or preference
🧰 Compact, Lightweight Design
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Weighs only about 345g (12 oz) — easy to carry, fits in most pockets or MOLLE gear
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Ergonomic vertical layout with ambidextrous button placement for ease of use in all conditions
💧 Durable, Weather-Resistant Build
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Rated IP67 waterproof and dust-proof
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Rugged, rubberized body withstands tough environments like dense forests, mountains, or harsh weather
🛡️ Long-Term Reliability
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Typically backed by a multi-year manufacturer warranty
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Built for professionals who need dependable performance over time
LUMI brings the power of thermal observation devices to a compact and user-friendly form-factor for hunters on-the-go. The all-new LUMI series of handheld thermal monoculars features a high quality thermal sensor, available in 384×288 (L35) or 640×512 (H35) paired with a 1024×768 AMOLED display. Available models offer either a 2.5x base magnification (H35) for a wider field of view, or a 4x base magnification (L35) for identifying targets at greater distances.
Our advanced Reality+ image processing algorithm and a ≤18 mK NETD (thermal sensitivity) rating provide sharp, high-contrast images. Powering the LUMI is simple and affordable using common interchangeable 18650 style batteries. As a powerful tool for scouting and scanning, LUMI was designed to be as compact and ergonomic as possible while still offering impressive image detail and clarity; LUMI weighs 12 ounces and easily fits in the palm of the hand, a pocket, or the included MOLLE-compatible case.
- Lightweight and compact design easily fits in a pocket or the include MOLLE-compatible pouch.
- Weatherproof rubberized texture increases durability and is not cold to the touch.
- Powered by a common 18650 style rechargeable battery with a spare battery included.
- Advanced R+ image processing provides enhances image quality during digital zoom.
- Onboard photo, video, and audio recording.
- Comfortable ambidextrous vertical design.

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Optics
Objective Focal Length
35mm
Display Type
AMOLED
Eye Relief
25mm
Digital Magnification
8X
Diopter Range
-5 to +5
Vertical Angular Field of View
9.4°
Horizontal Angular Field of View
12.5°
Focusing Mechanism
Manual Focus
Objective F#
0.9
Objective Diameter
35mm
Objective Lens Material
Germanium
Display Resolution
1024×768
Detection Range
1750 Yards
Optical Magnification
2.5X
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Features & Performance
Warranty
5 Years
Startup Time
<10 Seconds, Instant from Standby
Color Palettes
White Hot, Black Hot, Red Hot, Color, Violet, Crimson, Viridian
Picture-in-Picture
Yes
Storage Capacity
32GB
Connector Output
Power/Data
User-Updatable Firmware
Yes
Mobile App
Yes
Run Time
4+
Power Source
USB-C External, 18650 Battery
One-Shot Zero
Yes
Stand-by Mode
Yes
Connector Type
USB-C
External Power Source
USB-C
Country of Manufacture
China
Wifi
Yes
Onboard Recording
Yes
Image Capture
Yes
Video Output
Yes
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