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Best Grow Lights For Pepper Plants – Indoor Grow Lights

If you grow pepper plants from seed, you’ll most likely need to use a grow light to get the plants started. Grow lights have come a long way in recent years, from bulky and loud lights to slim, silent LED lights. In this article, we’ll discuss some of the very best grow lights for pepper plants.

While these lights were chosen with growing peppers in mind, they will also work well for growing almost any sunlight-loving plants. Think tomatoes, other veggies, herbs and even decorative shrubs and flowers.

We have experimented with several grow light setups and have chosen a variety of great options depending on your situation. We’ll cover cheap lighting for small setups, all the way to more powerful lights for growing many plants.

Pepper plants growing indoors under grow lights.
Pepper plants under grow lights.

LED Grow Lights For Peppers

There are a wide range of LED grow light options for growing peppers. This is our preferred type of grow light thanks to the cool running temperature, the slim designs, and the low maintenance.

LED lighting elements can last for thousands of hours, making them the perfect light source longevity. Considering your lights may run for 16 hours a day, all year long, having a long-lasting light is essential.

Here, we have rounded up some of our top LED grow lights for peppers. They range in price and light output, so you can pick one that fits your needs.

Window light vs grow light pepper plants
Window light (left) vs grow lights (right) – same variety planted on the same day!

Viparspectra LEDs (Excellent Value)

If you are looking for a good budget friendly option, the VisparSpectra Pro Series has great output and efficiency for the price point. Usually priced well below $100, the P1000 light is a good way to get the best bang for your buck in the LED world.

Pros:

  • Great price
  • Dimmable
  • Real heat sink for cooling
  • White & red LEDs

Cons:

  • Thicker with heat sink
  • Heavy
  • Non-name brand LEDs

Coverage Area:

  • Vegetative stage: 2.5’x2.5′
  • Flowering stage: 2’x2′
Viparspectra p1500 LED bulbs off
Our Viparspectra P1500 grow light.

* Use code: ‘peppergeek’ for a discount

More and more LED light brands are popping up, claiming to offer better and better grow lights for less money. While many budget options will offer a ‘get what you pay for’ situation, the Pro Series units deliver real results for a great price.

See our full review of the ViparSpectra P1500 here.

Viparspectra p1500 Dimmer Knob
ViparSpectra P1500 LED grow light.

ViparSpectra was known for ‘blurple’ grow lights when they were a more popular choice. They have now begun to sell quantum board lights with some handy features. Namely, this light is dimmable, and comes with a built-in heat sink. This allows the LEDs to run cooler, in theory slowing down the light decay over time.

While the quality of the LEDs and/or driver is potentially below average, if price is your main objective, this full spectrum LED might be a great start for growing your peppers.

For a slightly larger grow area, step up to the P1500 or the P2000 lights for additional power. These have the same features as the p1000, but with more coverage.

See all ViparSpectra P-series grow lights here.


Spider Farmer SF600 (Best For Seed Starting)

If seed starting is your main goal with your grow light, the Spider Farmer SF600 (and SF300) are great options. Both have a long, narrow coverage, perfect for lighting up your seed starting shelf.

Pros:

  • Rectangular coverage area
  • Excellent efficiency
  • Natural white light
  • Lightweight
  • Silent

Cons:

  • No dimmer knob
  • Hanging is slightly awkward
  • Somewhat expensive for output
  • Not water resistant

Coverage Area:

  • 2×4′ at about 1′ height
Spider Farmer SF600 Hanging Above Pepper Plants
Spider farmer SF600 LED light.

Spider Farmer is a well-known LED maker, using some of the world’s best quality components. Our SF600 has been perfect for our 2×4 foot area on our grow shelf.

There are a couple drawbacks, namely the lack of a dimmer knob, and the hanging hardware. The light essentially comes with two cables attached to either side, and two wing nuts to fasten the cable to something. This is versatile, but I wish it were a bit easier to hang and adjust the light’s height.

Spider Farmer SF600 LED Grow Light
Spider Farmer SF600.

The light is also not water resistant (the LEDs are not coated with a protective film like other lights). This can be a problem if you are misting your peppers regularly, but so far we have not had any issues.

Overall, the SF600 is a lightweight, low-profile LED that is efficient and silent. For seed starting, it’s hard to to imagine a better option for the price.


Vivosun VS Series

Vivosun recently sent us one of their latest grow lights to review and it is impressive. They also have a lineup of innovative indoor growing products so you can build a full setup from scratch.

Pros:

  • Full spectrum
  • Efficient & quiet
  • Robust build quality
  • Unique hanging hardware

Cons:

  • Dimming knob only has 5 settings

Coverage Area:

  • Vegetative stage: 3’x3′
  • Flowering stage: 2’x2′

If you are planning to grow your peppers indoors through to harvest, this LED is a great option, start to finish. The more powerful output is plenty to produce fruits.

Not only are LEDs quiet and slim, but they can be carefully tuned to produce a highly usable spectrum of light. Vivosun has dialed in all of the important light wavelengths for optimal plant growth.

Vivosun VS 1500 grow light turned on
Vivosun VS1500 grow light.

This unit is also silent, meaning no fan is necessary in most grow situations. However, if you are growing in an indoor tent, you may want to monitor the temperature, as the light does produce some warmth.

*Though most LED manufacturers tout long runtimes, output and efficiency does diminish over time. Expect an LED light to have approximately 80% of its original efficiency and output after about 25,000 hours of runtime.

Read more about our experience with the Vivosun VS1500 grow light here.


Fluorescent Lights For Peppers

Fluorescent lights offer a similar, cool running temperature at a lower price point. These lights tend to be a bit more bulky, but if budget is your main concern, they may be the right fit for your pepper grow light.

T5 Fluorescent Lamps

While LEDs have a lot to offer, the T5 fluorescent bulb has long been touted as one of the great grow light options. They offer low heat and high efficiency, but lack in the endurance category.

Pros:

  • Budget friendly
  • Runs cool
  • Efficient

Cons:

  • Not long lasting
  • Must be closer to plants

Coverage Area:

  • Variable (based on size & number of bulbs)

Fluorescent bulbs need to be placed closer to your plants since the light output scatters quickly as the distance from the light is increased. This can be viewed as a good or a bad thing, depending on your grow setup. With a dimmable LED, you can keep the light in a fixed position.

Tip: Try to find a light with multiple tube slots and use one warm tube (like this) and one cool tube (like this). This will offer a much better spectrum of light for your pepper plants to use.

If you can swing the price difference, we recommend going with an LED light for growing peppers over fluorescent bulbs. Replacement bulbs are not cheap, and many buyers complain of them burning out in less than 1 year of use.

While this will vary based on the quality of the light and the duration of daily use, we just prefer the sound of 25,000-50,000 hours of runtime!


More About Grow Lights

If you want a little more info about picking a grow light, here are a couple important topics.

Color Temperature

Color temperature determines the appearance of light from a grow light in the visual spectrum. In other words, does the light appear more red, or more blue?

Color temperature is measured in Kelvin, and ratings for grow lights typically range from 3000K-6500K. The lower the number, the more red-shifted the light will appear.

Color temperature is also associated with the wavelengths of light. This is measured in nanometers, and visible light ranges from about 400nm to 700nm.

If you want to use an LED grow light year-round, you might want to find a light that has some red (640-700nm), blue (450-500nm) and white LEDs. This will prevent the need to change the color of the light during different plant growth stages.

Other lights provide an option to change the color temperature at will. This usually means simply turning on or off some of the panel’s LEDs, either blue or red shifted diodes.

Why does it matter?

So why should this matter for growing plants? Many plants, including peppers, will change growth patterns based on the color temperature of light. Higher color temperature light promotes healthy leafy (vegetative) growth, while warmer temperature light will promote fruiting.

This means that, if you are just growing lettuce, you might want to look into lights in the 5000-6000K range. However, if your goal is to grow fruit-bearing plants (like peppers), you’ll need more red light during the fruiting stage.

Some grow lights will allow you to change the type of light that is emitted, so be sure to review a wavelength chart to see what the light emits.

PPF and PPFD

When looking at various grow lights, you will often see ratings for PPF and PPFD. These measure photosynthetic photon flux and photosynthetic photon flux density, respectively.

PPF measures the amount of photosynthetic active light that a light emits in all directions. This measurement only considers light in wavelengths between 400-700nm (the wavelengths used by plants to photosynthesize).

PPFD measures the amount of photosynthetic active light that reaches a surface. This is essentially a measure of how efficient the light is at providing usable light to your plants.

While most LEDs are highly efficient, they can still vary significantly. High-priced, professional lights are priced high for a reason, while lower cost options tend to scatter more light.


Indoor Grow Tents For Peppers

If you want to grow your peppers indoors over the winter, you might want to invest in a grow tent. These tents are fully enclosed, reflective zip-up tents in which you can grow plants. They usually contain holes for ventilation in order to provide fresh air to your plants.

While the setup is more complex than a simple seed starter tray, the benefit is that the light is enclosed. This means that you won’t have bright, glaring light in your home all year. It also offers a superior, reflective interior surface so that more of your light’s energy can reach the pepper plant’s foliage.

Grow tents:


I hope that this article gave you some insight into the best grow lights for pepper plants. It seems like LED lights are the future for high-endurance, reliable and efficient lighting. Good luck with your new pepper plant grow light!

Let us know how things are going with your indoor plants in the comments below.

Calvin Thumbnail

Calvin

One of the original Pepper Geeks! When Calvin isn’t gardening or learning more about peppers and botany, he might be traveling new places or playing some music.

Julie

Sunday 4th of February 2024

Thank you for the reviews and information. As a result, I just purchased the VS2000 from Amazon. I am excited to upgrade my current fluorescent grow lights to a solution that will provide better coverage, light source and ability to adjust as needed!

pepper nerd

Wednesday 6th of December 2023

What height do you recommend for 50W LED lights

peppergeek

Monday 11th of December 2023

It really depends on the spread of the LEDs, but I would guess around 12-18". Try to find the owner's manual to see if there are recommended hanging heights.

Mark

Sunday 26th of November 2023

Hi Calvin-

I'm in Rockport MA and I started my seeds too later last season. I know you are in CT so when do you start your seeds. I appreciate everything about your site!

Mark

peppergeek

Friday 15th of December 2023

Hi Mark - we start the majority of our seeds around late March and early April. If you're not using grow lights, maybe a week earlier. Hope you have a good season in 2024!

Garth

Sunday 19th of November 2023

I have lots of excellent lights, but never know how far to keep them from the plants. I do have a PAR meter but don't know the recommended values for any of the veggies.

Donovan

Friday 6th of October 2023

Do you have any recommendations for a "bar" style grow light? I am looking to hang above my plant table by a window that doesn't get much light. It is about 8ft long and I'd light to have a few lights above it to help supplement for my pepper plants in the winter :) Thank you!!!