Advantages and Disadvantages of HPS Grow Lights and LPS Grow Lights

Do you think you are at the stage wherein you would need HPS Grow Lights and LPS Grow Lights for your indoor plants? Before you decide if you want them to be present at your home or not, it can be beneficial if you would know what their advantages and disadvantages are. Just to remember, HPS and LPS Grow Lights have been around since the 1960s or longer, and there are lots of more “modern” alternatives” today like the best LED grow lights or T5 grow lights, you can find more information about those on our site of course. Even though, some people do believe on HPS Grow Lights for still being one of the best (and cheapest!) alternatives for growing cannabis. We will shed a light on the advantages and disadvantages of HPS Grow Lights and LPS Grow Lights.

HPS Grow Lights

HPS Grow Lights are also known as High Pressure Sodium Lights. Generally, these are lights that are useful because they are similar to the rays of the sun. This means that they will help indoor plants grow effectively.

HPS Grow Lights


  • They Usually Come in Kits – Purchasing HPS grow lights can be easy because they come in sets. This means that you do not need to purchase anything else anymore because you can already get what you need.
  • Energy Efficient – No need to worry about how much you are going to spend because you know that they are energy efficient.
  • Can Prompt Flowering Plants to Flower – Since they can provide red lights, you can be sure that they will be able to let plants flower effectively.


  • Expensive – If you do not want to spend too much money on kits, HPS lights may be a bit more expensive than your current budget.
  • Hard to Dispose – HPS lights use mercury which can make it hard to just throw away in the trash can as it can pollute other items that are available.

LPS Grow Lights

LPS grow lights on the other hand are known as low pressure sodium plants. They are known to stop infrared rays so you do not have to worry about using them. They are known to usually produce white or yellow lights.


  • Maintenance of Intensity – You can be sure that the lamp will be able to maintain the intensity of the lights with ease.
  • No Heat – Are you wondering if the heat from the lights will hurt your plants? You can be sure that since it does not generate heat, you do not need to worry about anything.
  • No Pollution – Unlike other plants, they will not produce any pollution for you.


  • Lower Intensity than HPS – If you would compare this to HPS lights, they may not have the same initial intensity.
  • May Require A Lot of Space – You may have a hard time with trying to put them inside your own home probably because they may take up a lot of space.

Now that you already know the advantages and disadvantages of HPS grow lights and LPS grow lights, do you think that you will be able to choose the right one for you? Or rather go for other, more modern and clean technologies?

In order to help you with making a choice, you may want to consider the plants that you would like to grow. Are you going to grow vegetative plants? Are you going to grow flowering plants? If you are going to grow both types of plants, you may need to get both types of lights because they can be effective for both. For more detail and how to choose the best HPS Grow Lights, read our article here.

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