This is a crucial issue in facility agriculture and high-density planting. Ensuring uniform light is key to improving yield, quality consistency, and management efficiency. The core approach is to combine "optimized natural light" with "scientific supplemental lighting," along with environmental control and agronomic measures.

How to ensure uniform lighting for grow lights in different planting densities/greenhouses?

The following introduces common methods and key points from four aspects: Luxgrow grow light fixture arrangement, measurement and monitoring, auxiliary equipment, and management.

1. Luxgrow Commercial Growing Light Fixture Internal Space and Layout Optimization

Led Light Grow Grid Layout

• Arrange the lights in rows and columns at equal intervals, forming a "chessboard" or "honeycomb" pattern.

• Spacing = effective illumination diameter of the light fixture × 0.5–0.8 times, ensuring some overlap in the light spots.

Led Lamp Grow Light Staggered Installation

• Stagger adjacent rows of lights by 50% in the longitudinal or transverse direction to reduce direct "hot spots" and "dark areas."

• Particularly effective for long trellises, balancing the light intensity difference between the ends and the middle. 2. Cannabis Cultivation Lighting: Intensive Measurement and Real-time Monitoring

When natural light is insufficient (e.g., winter, continuous rainy days) or the density is extremely high, artificial lighting is essential to ensure uniformity. Therefore, PPFD (Photosynthetically Active Radiation) values must be measured using a grid of measuring points.

Lay a PPFD quantization grid with a spacing of 0.5–1 m on the horizontal/canopy surface (using quantum sensors).

• Measure and record regularly (e.g., monthly), and calculate the required photosynthetically active radiation (PAR) based on the crop's light compensation point and saturation point. Use a lux meter/quantum photometer to measure the existing light intensity to determine the amount of supplemental lighting. Calculate the light uniformity.

3. Vertical Agriculture Supplemental Lighting Auxiliary Equipment and Management: Based on modern intelligent cultivation management, Luxgrow provides a professional lighting control system that can be remotely controlled via mobile phone and computer. Adjust the lighting of the cultivation lights according to plant growth and illumination duration. One-button operation is convenient and simple.

Adjusting Plant Height and Orientation: Use a trellis system to regularly wind the vines and keep the growing points aligned. For solanaceous crops, vines can be lowered in the later stages of growth to maintain effective light penetration.

Use reflective film: Lay silver or white reflective film under walkways, cultivation troughs, or back walls to reflect light hitting the ground onto the lower and middle leaves of the crops. This method requires minimal investment and yields significant results.