About Light Meters
Light meters are an excellent tool for indoor gardeners concerned about the impact of raising and lowering lights, as well as the lighting intensity at various levels in their garden. Measuring light intensity can give you several important insights into the performance of both your grow light, tent, and plant. By comparing your light intensity at canopy to light intensity at lower levels, you can make decisions about pruning and defoliation. If you check levels off the walls vs. directly under your lamp, you can determine how reflective your walls are and where it is best to position your plant.