LUSTER LEAF RAPITEST SUNLIGHT MEASURING DEVICE: Measures the amount of accumulated sunlight that falls on any specific location.
Why you should measure your sunlight
All plants require some level of sunlight in order to grow and thrive. Plants capture the energy they need from sunlight and convert it into the food they need to grow. This process is called photosynthesis. The light specturm that plants use to support photosynthesis is call Photosynthetically Active Radiation (PAR).
Most gardens and yards have to contend with a multitude of different sunlight called micro-climates. The path of the sun, the effects of shade trees, shadows produced by your home, walks and fences all contribute to a variable amount of available sunlight. Since the SunCalc is designed to measure PAR light intensity, you can easily measure the amount of sunlight over a 12hr period required for FULL SUN, PARTIAL SUN, PARTIAL SHADE or FULL SHADE.
How it works