There are 3 types of bulbs that work well as grow lights: metal halide, high pressure sodium (HPS), and fluorescent. Each type of light fixture has its own advantages and drawbacks. 1  Metal halide bulbs are compact and efficient, producing a very intense light from a small bulb.
The normalized difference vegetation index (NDVI) is a simple graphical indicator that can be used to analyze remote sensing measurements, typically but not necessarily from a space platform, and assess whether the target being observed contains live green vegetation or not.Contents.he normalized difference vegetation index (NDVI) is a simple graphical indicator that can be used to analyze remote sensing measurements, typically but not necessarily from a space platform, and assess whether the target being observed contains live green vegetation or not. Contents.
A DVI-D connector is a cable between digital devices that provides an all-digital signal. It is most commonly used to connect computer video cards to LCD monitors.DVI cables in general have been replaced by HDMI cables in most HDTV and home theater setups. DVI-D connector is a cable between digital devices that provides an all-digital signal. It is most commonly used to connect computer video cards to LCD monitors.