Coverage Areas & Hanging Guide

Correctly hanging grow lights ensures proper coverage and safety. Fortunately, we make it simple to do. Your standard rope ratchet rated at 40 lbs (18kg) will easily hold your lights, which weigh 3-12kg, depending upon the model and options chosen.

Most rope ratchets have carabiners too small to fit our lights, which is why we recommend using the attached “S” hook as it makes it so much easier to hang the light. You can use the additional bracket to hang the light at an angle of your choice from a fixed position or take it off and use the center ring to hang the light.

Please note that all 400+ lights are designed to cover your typical 4’ x 4’ trays that are commonly used in indoor gardens, and while they put out a round light footprint, the quality light is concentrated on your standard 4’ x 4’ tray. Same can be deducted for the other round-faced lights in the range. See below for further details.

The SK600 covers a 5' x 5' footprint with ease


Placement of Lights

Lighting fixtures work best when shared. By placing lights in close proximity to each other, plants that would otherwise be on the periphery receive more light from both lamps, thereby increasing their productivity in what is known as cross illumination. Please review the footprint that works best for your application of light.

One widely used method to determine a lamp’s intensity over time is the Inverse Square Law. As a general rule of thumb these results can be found in most lighting scenarios and is only being used here as a guideline. Using different reflectors that focus light into a narrow region such as our 90° reflector will change the outcome of these values greatly as will our 120° reflector.

Once your lamp is properly secured to the ceiling, you must determine the appropriate hanging height above your plant canopy. Light intensity diminishes at an exponential rate, therefore, the closer you hang your light, the greater its effect will be. With LEDs plants can touch the lamp without suffering heat damage to the plant. However, the light is too intense for most plants to be any closer than 24” of our light source*

*Applies to SK600 light only

 

Coverage Areas

Raising the light higher above your plants increases the light coverage, but also decreases the light intensity. Therefore, it is important that you find the appropriate balance between intensity and coverage. Each Spectrum King LED grow light has been rated to cover a determined area:

SK600

120° reflector: Covers 5’ x 5’ area at 24” above the canopy during flower for normal plants and should be placed up to 36” above the canopy for sensitive strains. It can cover an 8’ x 8” area in vegetative plants at 3’ above the canopy. The SK600 is meant for plants 2′-6′ tall during flower and is your best choice for ceilings above 7′.


400+

90° reflector: Covers 4’ x 4’ area at 18” above the canopy for normal plants and should be placed up to 24” above the canopy during flower for sensitive plants. It can cover an 8’ x 8’ area for vegetative plants at 5’ above the canopy. The 400+ 90° reflector unit is meant for plants 2.5’-6’ tall during flower and is your best choice for ceilings that are 8’-11’ tall.

120° reflector: Covers 4’ x 4’ area at 12” above the canopy during flower for normal plants and should be placed up to 18” above the canopy for sensitive strains. It can cover an 6’ x 6” area in vegetative plants at 3.5’ above the canopy. The 400+ 120° reflector unit is meant for plants 18”-42” tall during flower and is your best choice for ceilings under 8’ high.


CC+ (140W)

90° reflector: 3’ x 3’ at 12” distance from the plant canopy during flower for normal plants or 18” for a larger coverage area and more light sensitive plants during flower. For vegetative plants, the light can cover a 4’ x 4’ area 18″ above the canopy.


MLH+ (140W)

90° reflector: For vegetative and mother plants, the light can cover a 4’ x 4’ area 18″ above the canopy.

 

Closet Case (100W)

90° reflector: Covers a 3’ x 3’ area at a 10” distance from the plant canopy during flower for normal plants or 18” for a larger coverage area and more light sensitive plants during flower. For vegetative plants, the light can cover a 4’ x 4’ area 18″ above the canopy.


Mother’s lil’ Helper (100W)

90° reflector: For vegetative and mother plants, the light can cover a 4’ x 4’ area 18″ above the canopy. The MLH 90° reflector unit is made for plants 4’-8’ fully grown.