LED grow lights have gained significant popularity among indoor cannabis cultivators, owing to their effectiveness in providing essential light and energy for plant growth and food production. However, the traditional LED lights' large size often poses a challenge in smaller spaces and grow tents. Addressing this issue, a more compact yet equally efficient variety of LED grow light, known as COB LED grow light, has been developed. So, what exactly are COB LED grow lights? "COB" stands for Chip-on-Board, a technological approach in LED design. In this method, numerous small LED chips are densely packed and mounted on a substrate to create a unified module. These chips are interconnected, forming a singular, potent light source, typically placed on a copper or ceramic board. This arrangement makes the chips appear as one cohesive lighting panel rather than individual lights. COB lights, distinguished by their compactness and higher intensity, offer several advantages over traditional LED grow lights, which will be explored in more detail in this article. Before we get into it, check out the following articles on indoor growing equipment Best 1200 Watt LED Grow Lights for Cannabis Best 10x10 Grow Tents Best Carbon Filter for Grow Room Guide Difference between COB LED and SMD LED Grow Lights SMD grow lights represent Surface Mounted Diodes, and it explains how a standard LED grow light is built. It is a single patch LED lamp with one light-emitting diode. This type of LEDs is arranged on an aluminium substrate and covered in epoxy resin. On the other hand, COB are multiple tiny chips wired and packaged to form a single module, making them function as a single light source. Both LED grow lights are quite similar in terms of lifespan, efficiency and light spectrum. The significant difference between the two is how they are built and designed. Another difference between these lights is that COB has a much stronger light intensity than SMD because it is built with more LED chips than the regular LED grow light. Also, the compact size of COB light also makes it different from SMD LED grow lights which are much bigger and bulkier. COB lights also produce denser and more focused light beams because multiple LED chips are packed together in a single area, with the help of a reflector. COB LED grow lights are also known to produce less heat than the SMD LED grow lights. Advantages of COB LED Grow Lights

• • High Lumen Density

: COB is made up of many tiny LED chips which causes them to have a high light density. The intensity of the light is strengthened, and they require much less space to produce more light.

• • Incredible Light Spectrum

: Most COBs have a warm white and cool white color which are very important for plant growth. They are also available in other colors providing an excellent spectrum for your plants.

• • Deep Penetration

: COBs are more powerful and penetrate deeper than a single diode because all the diodes appear as one large LED chip. They penetrate your plants beneath the canopy, enhancing their growth and providing every part of your plants with enough light.

• • Focused Light

: The light energy produced by COBs is more focused than other types of grow light. The LED light chips are condensed into a smaller space because of the reflectors, which supports them. This is why the light produced is focused and very dense. The reflectors support the LED chips and boost the light spectrum, making it stronger and ideal for your plants.

• • Compact Size

: COBs are much smaller than SBD LED grow lights and other types of grow light. They require less space and are of high quality.

• • Less Heat

: COBs produce way less heat energy because they are built with fewer components, and the thermal sink is directed towards the circuit board, enhancing its cooling effect. Disadvantages of COB LED Grow Lights As great as COB LED lights are, they also have a few shortcomings. These disadvantages don’t lower their efficiency; it simply gives other LED lights an upper hand. One of the disadvantages of COB LED lights is the lack of versatility. While other LED grow lights give you the option of green, red and blue lights; COBs can hold only one light which is most commonly a warm or cool white light. If you are more interested in other wavelengths of color, this type of light may not be the best for you. The other setback is that if one of the LED chips fail, it’ll significantly affect the entire lighting system. Unlike SMD lights that are barely noticeable if one fails; the failure of one LED light chip in COB LED lights can cause a loss of a large portion of light. What to Look Out For in a COB LED Grow Light Quality of Material: This is an essential feature to consider the quality of material used to build the COB light. You have to get your money’s worth when shopping for this light. The quality of the material determines its durability and how long it may last. COB LED lights are supposed to be used for a very long time, you don’t want to purchase one that breaks or damages after using for a short time. Ensure you check the materials used in manufacturing the product before going ahead to purchase it. Energy Consumption: LED lights, including COB LEDs, require electricity to power them, which is why the amount of energy it consumes is something to factor in. An average grower use LED lights for about 10 hours a day, this makes it essential to get the light that consumes low energy, so you don’t have to worry about increased electricity bills. Type of Plant and Grow Room Size: Before you buy a COB grow light, you have to consider the strain of cannabis you’re planting and the area it is grown. You should factor in the requirements of each type of plant and the grow room being used, so you don’t end up at a loss. LED lights can generally be used for all kinds of plants, but various plants have different requirements which need to be considered. Emission of Heat: COB LED lights to produce less heat than other LED grow lights but nonetheless, they still produce some amount of heat. Some low-quality COB LED grow lights may emit a huge amount of heat that overwhelms your plants. This still balls down to the quality of light you purchase. Ensure that the heat being produced by the grow light is suitable and not harmful to your plants, so it doesn’t negatively affect your plants. Ease of Use: The LED grow light you choose to purchase must be very easy to use, install and adjust. The light intensity must be easy to regulate to suit the type of cannabis and stage of growth your plants are. Plants require a different level of light exposure at various stages of their growth. Whichever COB LED grow light you choose to buy must be smooth and convenient to adjust and regulate to meet the needs of your plants. Why Purchase COB LED Grow Lights? Higher Light Intensity: Light intensity is one of the main factors that affect the growth of your plants. Your plants need enough light to produce food and germinate, the higher the light intensity, the faster they grow. COB LED light has a very high light intensity which is much higher than SMD LED grow light. For your plants to grow fast and produce more yield, you should opt for this light. Elongated Lifespan: COB grow lights last about 30,000 to 60,000 hours. This means that you can use this grow light for a very long time. Size: If you are keen on having enough space in your grow room for your plants to grow, the COB LED light is the best for you. It is very compact, light and doesn’t take as much space as other grow lights. This is definitely a reason to purchase this type of grow light. We believe you have decided to purchase COB LED grow lights to facilitate the growth of your plants. To make your search for the best more effortless, we have put together a guide containing ten of the best COB LED grow lights available on the market.

The 6 Best COB LED Grow Lights Are Reviewed Below

The six best COB LED grow lights have been listed below; their key features and specification has been included.