LED versus HPS Grow Lights; Are LED Grow Lights Better

LED versus HPS Grow Lights; Are LED Grow Lights Better

Cannabis growers are threatened by everything from thieves to police raids to pests and diseases in plants have another concern: the increasing cost of electricity to produce their crops. And for growers that means big bills. However, there is a growing knowledge of the medical benefits of cannabis.

This is why growers are looking for new ways to reduce costs and continue to expand. The growth of LED lighting cannabis is a popular revolution to change the game. But it's good?


Before we dive, let's look at what distinguishes LEDs and HPS.

HPS stands for high sodium pressure. It's the traditional light that grows. HPS operates through a space filled with inert xenon gas along with mixed sodium and mercury gas.

HPS output emphasises the yellow-to-red areas of the spectrum, but at all wavelengths it also outputs light. Excess energy is emitted as heat, so high temperatures of the HPS bulbs run.

Usually, HPS lights are combined with Metal Halide lights, which do a similar job to HPS, but growers prefer them for the vegetative stage before flowering. Switching to HPS for the flowering stage.

LED stands for light emitting diode, recent developments in LED technology have taken them from niche applications to widespread use.

LED bulbs do not use gas to produce light. Your light comes from a solid semiconductor when electrons move through it. In practice, this means that LEDs are very efficient at what they do— and produce very little waste heat.

Do LEDs Work for Growing Cannabis?

Well, in short, the answer is a resounding “yes”!

While advances in LED technology have allowed the performance most of the functions of incandescent bulbs. They are used in everything from street lighting to car headlights. Growers have found that LEDs now work, if not better, for indoor plants.

The cannabis industry switches quickly to growing cannabis with LED lighting. Higher yields, lower running costs and greener growth.

What Are the Advantages?

So we answered if you can use LEDs to grow. However, what you really want to know is whether it's a better option than HPS and MS.

Now we have a better understanding of the difference between the light sources, we’re going to take a look at the advantages of growing with LEDs.

Less Wastage

HPS bulbs consume unbelievable quantities of power. They are about five times higher than your average reading light, with a capacity of 1,000 watts.

LED lights produce only light for growth in the required wavelength. Compared with full- speed HPS, they generate less light and less heat. This amounts to savings for farmers and a relief sigh for the power grid. If more states legalise the growth of cannabis, the demands placed on the network might not be sustainable.


If you remember your physics in science classes, you will know that fuel- consuming machines are a by-product of heat. The same applies to light bulbs. physics

We mentioned that HPS is power- hungry. They also give off plenty of heat, all the energy they consume.

But for farmers, that's terrible news. Cannabis plants are stress sensitive. Growers work hard to maintain stable temperatures in their plants. When using HPS bulbs, this means pulling up the AC and other cooling technology– increasing energy consumption.

LED bulbs take over sodium because they are so energy efficient, LED growers can turn the AC down and save them.

Higher and bigger Yields

You may suspect a lower cannabis yield with lower energy levels associated with LEDs.

Studies have shown that the other way around is accurate. LEDs continue to be a new technology, colouring public perception. However, modern LEDs can produce up to 1,5 grams per watt. It's drawing less energy than HPS!

LED light technology is still improving, which could see that the LED lights are the universal standard even higher by the time.


Which good system is more efficient if you always replace bulbs?

Fortunately, this isn't a concern for LED bulbs. HPS lights have a decent lifespan of one year or more. But LEDs smash the lifespan of 5- 13,7 years!

In addition to other gains in efficiency, LED lighting also takes time to test.


Low heat output LEDs give you more installation options.

For example, you can grow in smaller settings, such as under low ceilings. Or for maximum exposure, you can install LEDs closer to plants. While traditional HPS lighting would burn the plant, but with LED lighting can open up your choices.

Environmental Impact

Many of us are trying to take on extra responsibility for our environmental impact in our lives.

This can be a hand-wringer for growers. The carbon footprint and the HPS lighting waste is enormous. Until now, there were not many alternatives for farmers.

The producers who are interested in their impact turn to LED lighting as the perfect solution. The factors we have discussed above, from improved efficiency to less cooling, mean that the carbon footprint of cannabis is increasing significantly.

Learn How to Do It

Now you know that it is possible and you have discovered the benefits, it is time to learn how to do it.

Fortunately, there is a wealth of information online that teaches you the differences between HPS growth and LED growth. This guide, for example, covers all you need to know.

Here are a few things you need to consider:

  • You can keep LEDs closer to the plants
  • Choosing the right spectrum
  • Heating if you’re in a colder climate
  • Watering – you might need to do less of it!
  • Start Growing Cannabis With LED Lighting

In short, the evidence is entirely conclusive: the future of the industry is the growth of cannabis with LED lighting. Future growers are already switching over. The savings over time should overshadow initial costs.