The kernelUnitLengthY read-only property of the SVGFEDiffuseLightingElement interface reflects the Y component of the kernelUnitLength attribute of the given <feDiffuseLighting> element.
kernelUnitLengthY
SVGFEDiffuseLightingElement
kernelUnitLength
<feDiffuseLighting>
An SVGAnimatedNumber object.
SVGAnimatedNumber