Indoor plant growing is a rewarding and efficient way to solve the lack of light and heat for plants in some districts where days are shorter or the weather is bleak and unpleasant for growing plants; it is also the best planting solution in winter. Generally speaking, grow lights are divided into three types. MH or Metal Halide bulb gives out blue light spectrum, which is good for the growing of the leaf and shoot. The lighting time of MHs is 18 hours/D, and it should be hung higher than 18" from the top of a plant.

When winter comes, you can bring your plants indoors for months as long as you have adequate sunlight. A grow light is the most essential component of an indoor garden. It is widely used for both hydroponic and organic growing.

HIDs or high intensity discharge lights includes HPS and MH, both of which are highly efficient in providing light spectrum simulated with real sunlight. As for the HPS or high pressure sodium lamp, it mainly provides red and orange light which are.

They are HID, LED and Fluorescent grow light.