Light Spectrum Guide for Different Crops

Compare crop-lighting priorities for leafy greens, herbs, tomatoes, cucumbers, peppers and medicinal plants without relying on a universal spectrum recipe.

Start with the crop and production target

Spectrum works together with PPFD, DLI, photoperiod, temperature, CO2, nutrition and cultivar. A useful commercial brief defines the desired morphology, cycle time and quality attributes before a recipe is selected.

Leafy greens and herbs

These crops are often produced at moderate intensity and short mounting distance. Blue fraction, uniformity and heat at the leaf surface are practical comparison points; the final recipe should be confirmed in the actual growing system.

Tomatoes, cucumbers and peppers

Fruiting crops generally need adequate daily light and canopy penetration. Greenhouse daylight, top-light distribution and possible interlighting often have more influence on the project than a small difference in diode ratio.

Medicinal and specialty crops

Far-red and UV treatments can be evaluated as separate channels. Response varies by genetics, dose and timing, so a controlled trial and independent dimming are more defensible than promised yield percentages.

Build a comparable RFQ

Provide crop, stage, target PPFD/DLI, mounting height, photoperiod and any reference spectrum. Request model-level spectral and electrical data from every candidate supplier.