There is no standardized conversion between LUX and PAR, as PAR readings vary depending on several factors, including the type of light source (such as LED vs. incandescent), the distance between the light source and your plants, and other environmental conditions in your growing space. For this reason, PAR measurements are often taken directly with a PAR meter rather than relying on conversion formulas. However, some online PAR conversion calculators may be useful for determining general PAR levels in your space.