How High to Place LED Grow Light Bars? (For Consistent Light Coverage) -Test & Review for Grow Tents

Описание: How can you get the most uniform distance from an LED bar light? How much light is lost as a grow light is raised or lowered? After unboxing, I tested the PAR levels of the Maxsisun MG3000 to see how it can be configured for various growing applications. After taking over 800 PPFD spot readings with my Apogee SQ-520 sensor, I've compiled the results of my testing for this video product review.

The MG3000 is a perfect fit for a 3ft x 3ft or 90cm x90cm grow space. It can be hung 12", 18" or up to 24" above the plant canopy in a 3 foot tent. The chassis is structurally reinforced to withstand up to 140 pounds of weight. It's a solidly built light as demonstrated by my "step test". 😜 The light comes fully built with no assembly required. It has a quality feel and the light output and spread is excellent.

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PRODUCT LINKS (# CommissionsEarned)
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Mars Hydro FC-E3000 }--- Product Alternative!
► https://amzn.to/3BvNEri (Amazon US)

Spider Farmer SE3000 }--- Product Alternative!
► https://amzn.to/3O3hxVO

Maxsisun MG3000 }--- Out of Stock
► https://amzn.to/3foKISt (Amazon US)

My PPFD Meter (Apogee Instruments):
► https://amzn.to/3ebJiHZ

Support my channel by buying thru my link! 😃
NOTE: As an Amazon Associate I earn from qualifying purchases.

00:00 - Why Are LED Bar Lights Better?
00:13 - Product Overview & Specs
01:07 - How Much Grow Area for the LED Bar Light?
01:27 - How Consistent is the Light Coverage of a Bar Light?
02:46 - How Does Hanging Height Impact the Light Coverage?
04:17 - Comparing Light Coverage without Reflective Sidewalls
04:44 - How Does Dimming an LED Effect the Light Output?
05:09 - How to Compare LEDs to HPS or T5 Grow Lights
05:48 - LED Grow Bar Lights vs Quantum Style Boards
06:15 - What DLI Can You Achieve with This Light?

This UPS power station can backup a grow light!
►    • Emergency 🔌 Backup: Portable Power Station...  

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PRODUCT SPECS
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• Diodes: SAMSUNG LED LM281B+
• Full Spectrum: 3000K, 5000K, 660nm, 730nm (Far-Red Diodes)
• Driver: MEAN WELL ELGC-300-H-AB
• Power Draw: 289W
• PAR (PPF): 687 umol/s
• Efficacy: 2.38 umol/J
• Coverage: 4 ft x 4 ft Veg / 3 ft x 3 ft Bloom
• Distance: 12" - 24" from Plants
• Dimming: On board dimming control from 29W to 289W MAX


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PRODUCT HIGHLIGHTS
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• LIGHT OUTPUT: The Samsung diodes & Mean Well driver are good quality. Not the premium top-of-the-line. But still very efficient, at an affordable price. Maxsisun properly tested the light & posted their integrating sphere test report in their site. At 289 watts it outputs a PPF of 687 umol/s which translates into an efficiency rating PPE of 2.38 umol/J.

• LIGHT COVERAGE: The PPFD maps provided by Maxsisun were taken with an Apogee MG-620 light meter. This meter cover a broader spectrum than standard PAR (400-700nm). So I took my own readings with the standard Apogee SQ-520 sensor. In my test bed, I observed excellent light coverage from the center to the corners. For a flowering 12/12 cycle, this light is ideal over 9 sq ft. It could cover 16 sq ft for seedlings, clones or vegetative growth.

• HANGING HEIGHT: I recommend a minimum of 12" or up to 24" in a 3x3 tent. You might go a little higher in a 4x4 tent for low light applications to achieve optimal light spread. Compared to 18", you can get a 4% boost in photon output by lowering the light to 12". But this comes at the expense of uniformity in coverage. For the best coverage from center to corner (in a 3x3 tent) try raising the light to 24". Be aware that the photons hitting the plant canopy will drop by 5% though.

• DIMMING: The dimming function predictably reduces light levels. Expect a 50% reduction in power (wattage) to reduce light output by 50%. Note: The dimming knob cannot be relied on for accurately achieving your target brightness. Use a KillaWatt meter to check power at the wall or a light sensor to achieve your target brightness at the canopy.

• FINAL THOUGHTS: Maxsisun's MG3000 was a good option for entry level medicinal growers, but also for hobby gardeners. It can easily replace a 400W HPS light. Or even up to a single ended 600W HPS. But a double ended HPS in a modern ballast will have higher output than this LED. It's an option for T5 fluorescent users. This 289W system can replace a 12 bulb, 4 ft T5HO fixture, which would normally consume 648W.

I liked the MG3000, but due to stock issues I now recommend the Mars Hydro FC-E3000. See link above!


#Horticulture #ledgrowlight #BestLEDGrowLight #IndoorGrowing #LEDlighting #GrowYourOwn #ArtificialLighting #Albopepper


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