Spectrum Design

Supplemental Red Light for Flowering and Fruiting Crops

Deep red light is widely used in horticulture because plants absorb it efficiently for photosynthesis. Supplemental red LEDs can be useful when they are balanced with the full spectrum fixture.

Quick Answer

Red light can support crop performance, but balance is essential.

Adding 660 nm deep red may help increase photosynthetic efficiency and support flowering or fruiting programs. However, too much narrow red without blue and broad white light can create poor plant shape or difficult crop inspection.

Supplemental red should be selected according to crop target, base spectrum and PPFD plan.

Agrilumia spectrum design with red light supplement

When supplemental red makes sense

Use CaseReason
Flowering cropsCan support photosynthetic activity and crop response.
High-output roomsAllows spectrum tuning around a strong full-spectrum base.
Research or OEM projectsSupports recipe development and product differentiation.

Agrilumia custom spectrum service

Agrilumia offers standard full spectrum fixtures and custom spectrum options. For OEM/ODM projects, red light ratio, diode brand, driver design and fixture structure can be planned together.