K3 Series and K5 Series Kind LED grow lights have low profile designs and IP65 ratings. These grow lights can be used in various ways; you can install them vertically or in between rows of plants to light unlit areas. There are two main spectral categories of Kind LED lights: vegetative and flowering lights. These broad categories provide the macro and micro spectrum of light.

Macro spectrum LED lights provide the primary spectrum of light required for vegetative or flowering growth. This spectrum comprises the blue and red bandwidths of light that are readily absorbed by plants. Plants require this spectrum of light for photosynthesis. The micro spectrum of light is required for vegetative or flowering growth. They consist of various bandwidths of light such as yellow, IR, UV, orange, and green. These bandwidths of light are required by plants in smaller proportions.

Vegetative Bar Light

Vegetative Bar Light Spectrum Of LED Grow Lights

These bar lights are biased on the blue end of the spectrum of light and are ideal for leafy greens and other plants that need to remain in the vegetative stage before they can begin flowering. Kind LED lights in the vegetative macro spectrum have the primary spectrum required for lush vegetative growth. On the other hand, lights with vegetative micro spectrum offer the secondary spectrum required for a more complete spectrum, especially in areas that require multiple bar lights.

Flowering Bar Light

These bar lights are biased on the red end of the spectrum and are suitable for supplemental lighting for plants that are in the flowering stage.

A flowering macro spectrum light provides the main spectrum required for exponential flowering. On the other hand, a flowering micro spectrum light provides the secondary spectrum required for a more complete spectrum especially when using multiple bars to light up an area.

It is generally advisable to use macro spectrum LED lights if you simply want to add supplemental LED grow lights to a grow room. In addition, a two to one ratio of macro to micro spectrum LED lights is recommended for multiple bar light setups that use Kind LED grow lights as the primary source of lighting. The mix will provide the ideal full spectrum LED grow lights found in most traditional grow rooms.

LED Bar Footprint

The footprint of LED grow lights for sale is determined by the overall length of the light that has been used. Bar lights with 12-foot hanging height will have usable lights that extend out from the edges of the bar light by three to six inches. Therefore, the spacing of these bar lights is likely to be between six and 12 inches. This type of bar light spacing is ideal for primary lighting applications for moderate light use plants including leafy greens.

However, the spacing of bar lights used for supplemental lighting is determined by various factors including current lighting density, position of the lights in relation to the plants, and the total amount of light required by the plants.

The rugged construction of Kind LED lights makes them ideal for commercial greenhouse applications. These grow lights offer unlimited mounting options providing a perfect solution for individuals that want to add to their existing setups. Kind LED lights can be installed vertically, stacked or in a racked multi-layer system, and free hanging. They can also be installed in trellised grow rooms for climbing plants.

In some cases, the footprint of your Kind LED light may not look as big as advertised. Kind LED lights footprint is only achieved if the light is hung from the recommended height. The footprint of your grow lights will be smaller if they are hung closer to the light and vice versa. The stated footprint sizes for Kind LED lights are for average light use plants. The effective footprint of your LED lights is likely to be much smaller if you grow high light use plants.


All Kind LED light series have IP65 rating, which means that they are safe for use in harsh conditions of both commercial and residential grow room settings. An ingress protection rating (IP65) means that the cannabis LED grow lights are completely dust proof and can handle the spray of water nozzles from any direction without damage.

Recommended Bar Light Hanging Height

It is advisable to keep a distance of 12 inches between your bar light and the top of your canopy. At this height, the usable light extends out from the edges of the bar light by three to six inches.Therefore, the ideal spacing between the lights is six to 12 inches apart.

Kind LED lights emit significant amounts of light. Although some tree canopies can tolerate closer hanging heights, it is advisable to keep the hanging height not less than 12 inches.

Transferring from HPS or Fluorescents to Kind LED

You can transfer from HPS straight to Kind LED lights. However, it might take a few days for your plants to adjust to the new lighting setup because Kind LED lights emit a different type of light. Some plants may even experience bleaching on leaves on the upper parts of the plants. You can minimize the bleaching by hanging the lights 48 inches away from your lights for the first three to seven days until the plants are used to the new light setup.

Finding Your Sweet Spot

It is advisable to start with a hanging height of 48 inches for the first three to seven days. You can then lower the light six inches at a time after the initial break in period until you reach 30 inches. Raise the light back up six inches in case your plants experience discoloration or twisting. Maintain this height throughout the plant’s growth cycle.

Twisting and bleaching of leaves can occur if your lights are too close to your plants. To prevent this problem, move the lights six to twelve inches up from the canopy. The signs are likely to disappear within a few days and normal growth should begin again.

Bar Light Voltage

Kind LED lights can run efficiently on low voltages ranging from 110v to 277v. However, you may need to change the cords to accommodate the different voltages.

Using Protective Glasses

It is always advisable to use protective glasses according to expert LED grow lights review. Kind LED lights emit huge amounts of light. Like the sun, the light emitted by the grow lights can have harmful effects on your eyes. It is always recommended that growers use protective and color corrective shades. You can purchase LED specific models of protective eyewear directly from Kind LED representatives.

Ideal Room Temperature for Kind LEDs

LEDs have much less radiant heat. Therefore, the surface temperature on leaves under Kind grow lights will be significantly cooler than compared to fluorescents.

This may result in lower rates of transpiration and metabolism in the leaves of plants grown under Kind LED lights.

Raising the room temperature to 82 to 85 degrees will enable the plants to thrive in an ideal growth environment.

Using CO2 in your Grow Room with Kind LED

You can still use CO2 in your grow room with Kind LED lights. One of the most significant benefits of higher room temperatures when growing with Kind LEDs is that it increases the plant’s ability to assimilate carbon dioxide. In fact, raising the temperature in your grow room to 82-85 degrees creates the perfect environment for carbon dioxide assimilation to take place.

Effects of Power Outage

Kind LED lights have internal memories that revert them back to their last saved settings in case of a power outage. In case you experience power outages in your area and want your lights to come back at certain intensity after a blackout, you could simply manually adjust your lights to the desired intensity using the buttons on the lights. Press the OK button twice once you set the light at the desired intensity. Unplug your light and plug it back in to simulate a hard power off or power outage. You will notice that the intensity of your light after powering up is the same as the one you last manually entered. Pressing the OK button locks the settings into memory.

Function of the Heart Shaped Kindness button

Some Kind LED lights feature a heart-shaped button. The main function of the button is to reset your lights to factory settings. The button is centrally located on the remote that controls your LED lights. It is quite easy to press the button when setting your timer or temperature. Many growers have accidentally pressed the heart-shaped Kindness button and reset their grow lights to factory settings. This is one of the main reasons why some Kind LED remote controls do not have the heart-shaped button.

Another concern that some growers have with LED grow lights is whether the red light emitted from the display has a negative impact on their grow. The answer to this concern is quite simple, it will not. The small red light on the display of LED lights does not affect photoperiodic plants.

Kind LED lights have been tested and used for many years. There is a growing list of satisfied growers who use Kind LED lights. These lights have been proven to achieve unmatched results in both quality and yield.