LED Grow Lights Buying Guide: Everything You Need To Know

The LED grow light market is becoming increasingly popular as more and more people are looking for ways to get the most out of their indoor growing set-ups. Whether you’re a hobbyist, professional, or just getting started in the industry, this guide will help you understand everything you need to know about buying LED grow lights. From wattage and color spectrum, to understanding which types of lights are best suited for different plants and stages of growth – we have it all covered!

What Are LED Grow Lights?

LED (light emitting diode) grow lights are artificial lighting sources that emit specific wavelengths of light energy (in the form of photons). This type of light energy can be used to promote plant growth and flowering. LED grow lights are becoming a popular choice for indoor growers due to their long lifespan, low energy consumption, and low heat output.

What Is the Difference Between Full Spectrum, Red & Blue LED Grow Lights?

The main difference between full spectrum, red and blue LED grow lights lies in the color of light they emit. Full spectrum LED grow lights emit a balanced mix of multiple wavelengths while red and blue LEDs emit only specific wavelengths of light (usually in the 400-700 nanometer range). While both types of lights can be used to promote plant growth and flowering, full spectrum lighting is best suited for plants that require more evenly distributed light throughout the entire visible spectrum. Red and blue LED lights are better suited for plants that require more targeted spectral output to promote specific stages of growth or flowering.

What Is PPFD & How Does It Impact Plant Growth?

PPFD (Photosynthetic Photon Flux Density) is a measure of the amount of light energy (in photons) emitted by a lighting source per unit area per second. The higher the PPFD value, the more intense the light source is in terms of its ability to support photosynthesis. Plants require a certain range of PPFD values in order to be able to optimally perform photosynthesis and grow healthy and strong. Therefore, it’s important to ensure that your LED grow lights have an adequate PPFD output to meet the needs of your plants.

What Is PAR & How Does It Impact Plant Growth?

PAR (Photosynthetically Active Radiation) is a measure of the amount of light energy (in photons) that is available for photosynthesis within a given area. The higher the PAR value, the more intense the light source is in terms of its ability to support photosynthesis. Plants require a certain range of PAR values in order to be able to optimally perform photosynthesis and grow healthy and strong. Therefore, it’s important to ensure that your LED grow lights have an adequate PAR output to meet the needs of your plants.

What Are the Different Types of LED Grow Lights?

There are a few different types of LED grow lights available on the market, each with its own benefits and drawbacks. The two most common types are strip lights (which come in rigid or flexible variations) and bar lights. Strip lights are great for providing targeted light to specific areas, while bar lights can provide more evenly distributed lighting over larger areas. Additionally, some manufacturers offer “smart” LED grow lights that feature built-in sensors and programming capabilities which allow them to be automated or controlled remotely via an app.

What Wattage Do I Need for My LED Grow Lights?

The wattage required for your LED grow lights will largely depend on how much space you are looking to light. Generally, higher wattage lights will be better suited for larger areas (such as greenhouses or commercial grows) while lower wattage lights may be more suitable for smaller spaces (like a closet or tent). Additionally, the type of plants being grown and their specific light requirements will also play a role in determining the ideal wattage. It’s important to do some research and calculate the amount of light energy your plants require in order to determine which LED grow lights will best suit your needs.

Do LED Grow Lights Need to Be Replaced?

Generally, LED grow lights do not need to be replaced and can provide many years of reliable service. However, it’s important to note that LED grow lights may degrade over time, leading to a decrease in output and efficiency. Additionally, the specific type of LED used will also play a role in determining the lifespan and performance of your lights. It is recommended that you periodically measure the light output of your LEDs and replace them when necessary in order to maintain optimal lighting conditions for your plants.

How Far Away Should My LED Grow Lights Be from My Plants?

The ideal distance between an LED grow light and plants will depend on a few factors, including the type of light being used and its intensity. Generally, it’s best to start with the manufacturer’s recommendations and adjust as needed based on your plants’ response. When using flexible strip lights, it is important to keep in mind that the further away they are placed from the plants, the more light will be lost. Therefore, for optimal results it is usually best to place them as close to your plants as possible.

What Is Shadowing & How Does It Impact Plant Growth?

Shadowing occurs when certain parts of a plant or group of plants are not receiving enough light due to the shape or placement of an LED grow light. Shadowing can have a detrimental effect on plant growth, as it will prevent certain parts of the plant from receiving adequate light energy and therefore limit its ability to photosynthesize. In order to reduce shadowing, it’s important to ensure that your LED grow lights are properly placed and spaced in order to evenly distribute light throughout your entire grow space. Additionally, some manufacturers offer adjustable mounting brackets which allow you to easily adjust the height and angle of your LED grow lights in order to minimize shadowing.

Are LED Grow Lights Expensive?

The cost of LED grow lights can vary depending on the type and wattage being used. Generally speaking, higher wattage LEDs will be more expensive than lower wattage models. Additionally, “smart” LED grow lights that feature built-in sensors and programming capabilities are typically more expensive than standard models. However, it’s important to note that LED grow lights are highly energy efficient and can save you money in the long run by reducing your electricity costs. Therefore, while the initial cost of an LED grow light may seem high, it is usually worth the investment due to its reduced environmental impact and saving potential.

LED Grow Lights are an energy-efficient and cost-effective way to provide your plants with the light they need for successful growth. It’s important to do some research and consider factors such as wattage, distance from the plants, and shadowing in order to ensure that your LEDs are providing optimal lighting conditions for your plants. By following these tips, you can rest assured that your LED Grow Light setup will help promote healthy plant growth for many years to come.