Although LED's are rapidly changing the growing world, HPS is not to be disregarded here. They are the most common type of Lights used today and should not be taken for granted. They have their own set of advantages and can be manipulated to achieve the growth you are looking for. Some experienced growers have gone on to recommend HID Lights saying that they have seen better growth with them.
You must identify your budget and your goal and choose the one that best fits these requirements. If you are stuck or still need some help!
Same as saying through shrinking
The initial cost for HID bulbs is nothing compared to their counterparts. They offer a solution for growers who are looking to save money. As explained earlier, it might have a lower initial cost but the energy consumption is higher.