As small, but powerful light sources with low energy consumption, LED lights are perfectly suited for controlled environment agricultural settings. Indoor growers will need to adjust the type of lighting they use depending on the plants they grow.


There are two main types of LED lighting: low power and high power. Below, we explore the differences in terms of light output, energy consumption, and heat production. If you have any further questions about what type of lighting is right for your indoor farm, contact GrowFilm™ today.

Heat Production

All LEDs are efficient at converting energy into light with less heat because our LEDs use lower wattage diodes, and we know each watt produces 3.4 DTU’s. We use low wattage LEDs to help manage our heat load. Then we spread them out evenly on our sheet for maximum uniformity.


Light Output

The most significant difference between low and high power LEDs is the amount of light they put out. Low power bulbs emit a few lumens at most – usually in single figures. A typical 3W high-power LED, on the other hand, will have a light flux of 150 to 1,000 lumens. The significant increase in LED watt size yields more heat than smaller LEDs. As our academic advisor, Professor John Erwin, always says, “it’s just science.”


The current drawn by low power LEDs is small, and the heat is much more manageable. For this reason, efficiency is not an issue with lower power lights. A typical small LED uses about 50 MW of power. You can place hundreds of small lights across a light grow panel, provide plenty of lights for the plants, yet draw nominal energy.


When you are operating the same panel with 60 high power LEDs in it, you need to be a bit more concerned about efficiency. Greater efficiency means less drain on your bulb and your electrical system to provide the same level of light.