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  • Home
  • Start Here
  • Shop
    • Ghost Hunting Accessories
    • EMF Meters
    • Books & Guides
    • Digital Recorders
    • Flashlights & Lighting
    • Ghost Hunting Kits
    • Night Vision Cameras
    • Spirit Boxes
    • Thermal Cameras
    • Motion Sensors & REM Pods
  • Blog
    • Beginner Ghost Hunting
    • Equipment Guides
    • Investigation Techniques
    • EVP & Audio Analysis
    • Haunted Locations
    • Short Ghost Stories
    • Paranormal Events
  • Haunted Places Map

Day: September 15, 2026

30–50% More LEDs? How Sensor QE Picks 850nm or 940nm for Engineers

Partial infrared sensor and illuminator setup

Use your camera’s quantum efficiency to pick 850nm or 940nm. Read field sizing rules, range tradeoffs, and the 30–50% LED cost for 940nm.

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Discover the best paranormal investigation equipment at HauntGears. We review and recommend top ghost-hunting tools to help you explore the unknown with confidence.

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