curl --request POST \
  --url https://api.iotools.cloud/v1/tool/luminance-illuminance-converter \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "quantity": "illuminance",
  "value": "1",
  "illuminanceUnit": "lux",
  "luminanceUnit": "cdm2",
  "precision": "4"
}
'

{
  "tool": "luminance-illuminance-converter",
  "tool_version": "1.0.1",
  "outputs": {
    "table": [
      {
        "unit": "Lux (lx)",
        "value": "1"
      },
      {
        "unit": "Foot-candle (fc)",
        "value": "0.0929"
      },
      {
        "unit": "Phot (ph)",
        "value": "0.0001"
      },
      {
        "unit": "Millilux (mlx)",
        "value": "1000"
      },
      {
        "unit": "Nox (nx)",
        "value": "1000"
      }
    ],
    "reference": [
      {
        "scene-source": "Moonless overcast night sky",
        "typical-value": "0.0001 lx"
      },
      {
        "scene-source": "Full moon on a clear night",
        "typical-value": "0.25 lx"
      },
      {
        "scene-source": "Living room (residential)",
        "typical-value": "50 lx"
      },
      {
        "scene-source": "Office / classroom lighting",
        "typical-value": "320 lx"
      },
      {
        "scene-source": "Overcast daylight",
        "typical-value": "1,000 lx"
      },
      {
        "scene-source": "Full daylight (indirect sun)",
        "typical-value": "10,000 lx"
      },
      {
        "scene-source": "Direct sunlight at noon",
        "typical-value": "100,000 lx"
      }
    ]
  },
  "credits_used": 3,
  "credits_remaining": null
}