Watts ↔ Lumens ↔ Candelas Converter

Convert between electrical power, luminous flux and intensity to set realistic 3D lights.

Light Units Conversion

Formulas used:

Lumens ≈ Watts × 13-15 (efficient LED)
Candelas = Lumens / (2π × (1 - cos(θ/2)))
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Values update automatically as you type. Perfect for PBR light setup in Blender.

Relations between Watts, Lumens and Candelas

In physically based 3D lighting you often need approximate equivalences to emulate LED bulbs, flood lights and spot lights. This converter gives quick guidance for PBR setups.

keywords: lumens candelas converter, watts to lumens 3D, physical lighting blender, light intensity spot

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