High powered LED grow lights push the limits in both efficiency & overall brightness. This newly revised panel is strong enough to easily outperform 600W DE HPS systems, while consuming only 2/3 the power! When compared to a brand name Quantum Board*, Spider Farmer's grow lights generate more PAR photons (PPF) per dollar spent. A much better value without sacrificing on performance. In this unpaid product review, I measured light levels from my Spider Farmer SF4000 LED plant grow light. These lights were sent at no cost, to take objective PAR readings & demonstrate the new dimmer function!
00:00 - Overview
01:09 - Estimating Tent Size
04:27 - PPFD Maps
05:17 - Center Readings?
07:32 - Dimming Feature
08:13 - Final Words
Previous Reviews:
"1000" Model Grow Lights pt1: • Spider Farmer, Maxsisun, Mars Hydro -...
"1000" Model Grow Lights pt2: • Budget/Premium LED Grow Light UPDATE!...
Spider Farmer SF2000: • High End LED Grow Lights: Coverage Ar...
This UPS power station can backup a grow light!
► • Emergency 🔌 Backup: Portable Power St...
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PRODUCT LINKS (# CommissionsEarned)
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Spider Farmer SF1000:
► https://amzn.to/2YZfrLv (Amzn US / UK / DE)
► https://amzn.to/320wZss (Amzn CA)
Spider Farmer SF2000:
► https://amzn.to/2Nbs97b (Amzn US / UK / DE)
► https://amzn.to/2PJj8E6 (Amzn CA)
Spider Farmer SF4000:
► https://amzn.to/2uAFz5z (Amzn US / UK / DE)
► https://amzn.to/3aRJaNA (Amzn CA)
Support my channel by buying thru my link! :-)
My PPFD Meter (Apogee Instruments):
► https://amzn.to/3ebJiHZ
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PRODUCT SPECS
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• Diodes: SAMSUNG LED LM301B
• Spectrum: 3000K, 5000K, 660-665nm, 760nm (Far-Red)
• Driver: MEAN WELL XLG-240-H-AB
• Power Draw: 457W
• PAR (PPF): 1217 umol/s
• Efficacy: 2.7 umol/J
• Coverage: 5-6 ft x 5-6 ft Veg / 4-5 ft x 4-5 ft Bloom
• Distance: 18" - 30" from Plants
• Dimming Knob: 58W - MAX (w/ Daisy Chain Controls)
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PRODUCT HIGHLIGHTS
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SF4000 review:
APPLICATION: At 457W of power, this LED can replace a quality 600W HPS system (double-ended bulb in digital ballast). A suitable choice for indoor agricultural production. It can be used in individual tents for stealth grows. Excellent for traditional 12hr flowering crops but also day-neutral (autoflower) crops grown in sea of green applications. The light is great at ambient CO2 levels but also suited for high ppm CO2 usages. It can supply plenty of photons for high yields. Just be sure you select the right tent size.
COVERAGE AREA: Spider Farmer recommends veg: 6x6 & flower: 5x5. The light will work in those tent sizes, but performs better at veg: 5x5 & flower: 4x4. The resulting PPF per square foot would be optimal over that tighter area. But you need to dial things in correctly. That means getting all of those 9 cardinal parameters right: Light, CO2, Wind, Humidity, Temperature, Nutrients, Water, Oxygen & Root-zone Temperature. Just be sure to select the proper hanging height!
TOO BRIGHT??? As noted in the video, some lighting companies are focusing their attention on having the highest PPFD values for their center readings. At a certain point, those readings can be TOO high, resulting in poor plant response. Although plant yield tends to increase as PPFD level rise, the relationship is not linear. At a certain point, you're simply wasting energy, bombarding plant tissues w/ more photons than they can use.
Also, if the center PPFD readings are excessively high, this should not be viewed as a 'selling point.' This simply indicates that the grow light is too close & needs raised higher. The result will be more reasonable PPFD levels that spread more evenly across the entire plant canopy. The SF4000 is so bright, you simply need to raise it a little higher than other lights. I would say that the absolute minimum is 18".
FINAL THOUGHTS: I do highly recommend the SF4000. The added dimming function increases its flexibility. It can easily replace an HPS system & it is a better value that other branded LED lights. Compared to buying two SF2000s, a single SF4000 generates MORE light at a reduced cost. But at full power, it's tremendously bright! So place it at the right height & cover the proper area for your application.
NOTE: This light is NOT a "Quantum Board". Horticulture Lighting Group (HLG) has registered that term as a trademark. Don't confuse Spider Farmer's panels with actual "Quantum Boards" as they are in NO way affiliated! Alternate terms that could be used instead include: quantum LEDs, quantum styled panels or QBs. Generally, these have a large quantity of LEDs, spread out over a large area, in contrast with point sources like COBs.
#IndoorGrowing #LEDlighting #ArtificialLighting #QuantumLEDs #GrowYourOwn #Albopepper
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