{
  "id": "meters:flicker-meter",
  "collection": "meters",
  "slug": "flicker-meter",
  "name": "Light flicker meter",
  "summary": "Measures modulation depth and frequency of a light source, the optical counterpart to dirty-electricity measurements and the metric behind LED comfort complaints.",
  "status": "verified",
  "lastVerified": "2026-08-12",
  "data": {
    "aliases": [
      "flicker tester",
      "percent flicker meter"
    ],
    "measures": [
      "frequency"
    ],
    "bandCovered": {
      "minHz": 0,
      "maxHz": 100000,
      "label": "optical modulation"
    },
    "priceBandUsd": [
      40,
      600
    ],
    "detects": [
      "Percent flicker and flicker index of lamps and screens",
      "Driver quality differences between lamps"
    ],
    "cannotDetect": [
      "Any electromagnetic field quantity — this measures light, not EMF"
    ],
    "buyingCriteria": [
      "Reports percent flicker and frequency, not a pass/fail light",
      "Sample rate high enough for kilohertz PWM dimming"
    ],
    "related": [
      "emitters:led-lighting"
    ]
  },
  "sources": [
    {
      "id": "sbm-2024",
      "title": "Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)",
      "publisher": "Institut für Baubiologie + Nachhaltigkeit (IBN)",
      "url": "https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf",
      "year": 2024,
      "kind": "ngo",
      "retrieved": "2026-08-12"
    }
  ],
  "links": {
    "self": "https://emfbase.com/api/meters/flicker-meter",
    "html": "https://emfbase.com/meters/flicker-meter",
    "markdown": "https://emfbase.com/meters/flicker-meter.md",
    "collection": "https://emfbase.com/api/meters"
  }
}