In greenhouse horticulture, climate conditions such as temperature distribution, humidity, and air movement play a crucial role in plant health, nutrient uptake, and overall crop performance. Food Autonomy, in collaboration with Plant Lighting as an independent research advisor, conducted a pilot study in a greenhouse in the Netherlands to assess the effects of LEDFan technology on greenhouse climate and high-wire tomato cultivation. LEDFan integrates LED lighting with an active ventilation system, moving air through the fixture to promote heat exchange and better airflow distribution. The goal of this study was to determine how LEDFan influences temperature regulation, humidity levels, transpiration rates, and potential energy efficiency.