{"product_id":"blackdog-phytomax-4-4s-led-grow-light","title":"Black Dog LED PhytoMAX 4 4S Full Spectrum LED Grow Light","description":"\u003cp\u003eThe Black Dog LED PhytoMAX 4 4S is a compact, high intensity 250 watt LED grow light engineered for growers who want more than a conventional white diode fixture. Producing 531 µmol\/s of total PBAR output, the 4S combines Black Dog LED's proprietary Phyto Genesis Spectrum with integrated ultraviolet, violet, blue, red, and infrared wavelengths to provide a carefully balanced spectrum from 280 to 800nm.\u003c\/p\u003e\n\u003cp\u003eDesigned for approximately a 2.5' x 2.5' vegetative footprint and 2' x 2' flowering footprint, the PhytoMAX 4 4S delivers substantial intensity from a fixture measuring only 15\" x 15\". This makes it especially useful in tents, cabinets, propagation areas, compact indoor gardens, and supplemental lighting applications where available space is limited but light quality cannot be compromised.\u003c\/p\u003e\n\u003cp\u003eRather than designing the fixture solely around the highest possible efficiency number, Black Dog LED developed the PhytoMAX platform around plant response and productive growth. Eight different LED colors are blended to influence photosynthesis as well as photomorphogenesis, helping growers maintain compact plant structure, strong canopy development, and productive flowering throughout the complete growth cycle.\u003c\/p\u003e\n\u003ch3\u003ePhyto Genesis Spectrum\u003c\/h3\u003e\n\u003cp\u003eThe defining feature of the PhytoMAX 4 series is Black Dog LED's proprietary Phyto Genesis Spectrum.\u003c\/p\u003e\n\u003cp\u003eWhile many LED grow lights rely primarily on white diodes with supplemental red, Black Dog uses eight different LED colors selected to provide specific wavelengths across the biologically active spectrum.\u003c\/p\u003e\n\u003cp\u003eThe PhytoMAX 4 4S produces:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePBAR (280–800nm):\u003c\/strong\u003e 531 µmol\/s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUV (280–400nm):\u003c\/strong\u003e 16 µmol\/s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePAR (400–700nm):\u003c\/strong\u003e 476 µmol\/s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIR (700–800nm):\u003c\/strong\u003e 40 µmol\/s\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis broader spectral approach allows the fixture to deliver wavelengths outside conventional PAR in addition to the light responsible for primary photosynthesis.\u003c\/p\u003e\n\u003ch3\u003eIntegrated Ultraviolet Light\u003c\/h3\u003e\n\u003cp\u003eApproximately 3% of the Phyto Genesis Spectrum consists of ultraviolet light below 400nm.\u003c\/p\u003e\n\u003cp\u003eRather than requiring separate supplemental UV bars, ultraviolet wavelengths are integrated throughout the fixture so they are distributed across the growing area alongside the rest of the spectrum.\u003c\/p\u003e\n\u003cp\u003eBlack Dog LED designed this UV component to encourage compact development and natural plant responses while helping support pigmentation and other desirable characteristics.\u003c\/p\u003e\n\u003cp\u003eBecause the ultraviolet light is integrated directly into the spectrum, growers do not need to install or independently control an additional UV fixture.\u003c\/p\u003e\n\u003ch3\u003eViolet Light for Deeper Canopy Penetration\u003c\/h3\u003e\n\u003cp\u003eViolet wavelengths between approximately 400 and 450nm are included to help deliver useful light deeper into dense plant canopies.\u003c\/p\u003e\n\u003cp\u003eThis can improve light availability to foliage and developing growth below the very top of the canopy, helping make better use of the entire cultivated area.\u003c\/p\u003e\n\u003ch3\u003eBlue Light for Compact Development\u003c\/h3\u003e\n\u003cp\u003eBlue wavelengths between approximately 450 and 480nm support chlorophyll B photosynthesis while influencing plant morphology.\u003c\/p\u003e\n\u003cp\u003eAn appropriate concentration of blue light can help encourage tighter internodal spacing and more compact plant development rather than excessive vertical stretching.\u003c\/p\u003e\n\u003ch3\u003eRed Light for Strong Photosynthesis\u003c\/h3\u003e\n\u003cp\u003eRed light between approximately 600 and 700nm plays a major role in photosynthetic activity.\u003c\/p\u003e\n\u003cp\u003eThe Phyto Genesis Spectrum combines strong red output with blue and other wavelengths rather than relying on excessive red alone, helping create a more balanced growing environment.\u003c\/p\u003e\n\u003ch3\u003eInfrared and Far Red\u003c\/h3\u003e\n\u003cp\u003eThe spectrum extends beyond conventional PAR into the 700 to 800nm infrared region, producing approximately 40 µmol\/s of IR photon flux.\u003c\/p\u003e\n\u003cp\u003eProperly balanced far red wavelengths can work together with other colors of light to influence photosynthetic efficiency and plant development.\u003c\/p\u003e\n\u003cp\u003eBlack Dog carefully balances far red with the rest of the spectrum rather than using it as an isolated supplemental channel.\u003c\/p\u003e\n\u003ch3\u003e531 µmol\/s From 250 Watts\u003c\/h3\u003e\n\u003cp\u003eThe PhytoMAX 4 4S draws 250 watts while producing approximately 531 µmol\/s of total PBAR photon output.\u003c\/p\u003e\n\u003cp\u003eThat amount of light makes the fixture well suited as a primary light for compact growing areas or as a supplemental fixture within larger cultivation environments.\u003c\/p\u003e\n\u003cp\u003eIts relatively small physical dimensions also make it easier to position precisely where additional intensity is required.\u003c\/p\u003e\n\u003ch3\u003e2.5' x 2.5' Vegetative Coverage\u003c\/h3\u003e\n\u003cp\u003eFor vegetative growth, the PhytoMAX 4 4S is suitable for an approximately 2.5' x 2.5' footprint.\u003c\/p\u003e\n\u003cp\u003eThe broader vegetative footprint allows plants to receive the intensity needed for strong structural development while taking advantage of the fixture's compact physical size.\u003c\/p\u003e\n\u003ch3\u003e2' x 2' Flowering Coverage\u003c\/h3\u003e\n\u003cp\u003eFor higher intensity flowering applications, the recommended footprint is approximately 2' x 2'.\u003c\/p\u003e\n\u003cp\u003eConcentrating the 531 µmol\/s output over this smaller area provides the stronger canopy intensity required during later growth stages.\u003c\/p\u003e\n\u003ch3\u003eFully Dimmable From 15% to 100%\u003c\/h3\u003e\n\u003cp\u003eThe PhytoMAX 4 4S supports industry standard 0 to 10V dimming from approximately 15% through 100% output.\u003c\/p\u003e\n\u003cp\u003eThis allows one fixture to support plants across different development stages without forcing the grower to run maximum output at all times.\u003c\/p\u003e\n\u003cp\u003eLower intensity can be used for younger plants or less demanding applications, while output can gradually increase as the canopy develops.\u003c\/p\u003e\n\u003ch3\u003eActive LED Cooling\u003c\/h3\u003e\n\u003cp\u003eBlack Dog LED uses an actively cooled design rather than relying entirely on passive heat sinks.\u003c\/p\u003e\n\u003cp\u003eMaintaining lower diode temperatures helps LEDs operate efficiently and contributes to longer component life, particularly for specialized ultraviolet and violet LEDs.\u003c\/p\u003e\n\u003cp\u003eThe PhytoMAX design uses multiple redundant cooling fans. Black Dog LED rates both the fixture and expected fan life at more than 70,000 hours.\u003c\/p\u003e\n\u003cp\u003eThe redundant fan design also means the fixture is not dependent upon a single cooling fan for operation.\u003c\/p\u003e\n\u003ch3\u003eCompact 15 Inch Fixture\u003c\/h3\u003e\n\u003cp\u003eDespite delivering 250 watts of LED power, the PhytoMAX 4 4S measures only 15\" x 15\" x 4.5\".\u003c\/p\u003e\n\u003cp\u003eThis compact footprint gives growers considerably more placement flexibility than many large bar style fixtures.\u003c\/p\u003e\n\u003cp\u003eIt is particularly useful for smaller grow tents, compact gardens, cabinets, propagation areas, supplemental lighting, tight vertical installations, and spaces where fixture width is limited.\u003c\/p\u003e\n\u003ch3\u003eSP and SC Models\u003c\/h3\u003e\n\u003cp\u003eThe PhytoMAX 4 4S is available in two electrical configurations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePhytoMAX 4 4SP\u003c\/strong\u003e — The SP model uses a standard IEC style power connection. It supports approximately 100 to 250V and is intended primarily for conventional indoor growing environments. Power cord options include NEMA 5 15 and NEMA 6 15 depending on the selected electrical configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePhytoMAX 4 4SC\u003c\/strong\u003e — The SC model provides expanded electrical and environmental capability. It supports approximately 100 to 277V and uses a locking, water tight power connection. This makes the SC version the preferred option for greenhouse environments or other applications where a more secure environmental power connection is beneficial.\u003c\/p\u003e\n\u003cp\u003eLight output and core spectral performance remain the same between the SP and SC versions.\u003c\/p\u003e\n\u003ch3\u003eWide Voltage Compatibility\u003c\/h3\u003e\n\u003cp\u003eDepending on model selection, the PhytoMAX 4 4S can operate across a broad range of electrical systems.\u003c\/p\u003e\n\u003cp\u003eAt common voltages, approximate amperage for the 250 watt fixture is:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e120V:\u003c\/strong\u003e 2.08 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e208V:\u003c\/strong\u003e 1.20 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e230V:\u003c\/strong\u003e 1.09 amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e240V:\u003c\/strong\u003e 1.04 amps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe SC configuration extends compatibility to 277V installations.\u003c\/p\u003e\n\u003cp\u003eThis flexibility allows the same lighting platform to work in home gardens as well as larger electrical environments.\u003c\/p\u003e\n\u003ch3\u003eHigh Power Factor\u003c\/h3\u003e\n\u003cp\u003eThe fixture carries a 0.99 power factor, indicating efficient utilization of supplied electrical power.\u003c\/p\u003e\n\u003cp\u003eThis becomes increasingly useful when several fixtures are installed together within a larger growing environment.\u003c\/p\u003e\n\u003ch3\u003eDesigned for Long Service Life\u003c\/h3\u003e\n\u003cp\u003eThe PhytoMAX 4 4S carries a mean time between failure rating greater than 70,000 hours.\u003c\/p\u003e\n\u003cp\u003eIts expected fan life is also rated above 70,000 hours.\u003c\/p\u003e\n\u003cp\u003eBlack Dog LED has been developing LED horticultural lighting since 2010, and the PhytoMAX series reflects years of refinement focused on thermal management, spectral design, reliability, and plant performance.\u003c\/p\u003e\n\u003ch3\u003eDesigned and Assembled in Colorado\u003c\/h3\u003e\n\u003cp\u003eBlack Dog LED designs and assembles the PhytoMAX platform in Colorado using premium components selected for demanding horticultural environments.\u003c\/p\u003e\n\u003cp\u003eThe fixture also carries multiple safety and electrical certifications, including UL 1598, UL 8800, ETL, CE, FCC, and RoHS.\u003c\/p\u003e\n\u003ch3\u003ePower Cord Selection\u003c\/h3\u003e\n\u003cp\u003eChoose between a 120V NEMA 5-15 cord or a 240V NEMA 6-15 cord to match your electrical setup. If you are unsure which cord your installation requires, the 120V option is the standard choice for most indoor grow rooms and tents.\u003c\/p\u003e\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBlack Dog LED PhytoMAX 4 4S Grow Light\u003c\/li\u003e\n\u003cli\u003e8 ft Power Cord\u003c\/li\u003e\n\u003cli\u003eHanging Hardware\u003c\/li\u003e\n\u003cli\u003eIntegrated Active Cooling System\u003c\/li\u003e\n\u003cli\u003eBuilt In 0 to 10V Dimming\u003c\/li\u003e\n\u003cli\u003eUser Documentation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eBlack Dog LED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003ePhytoMAX 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e4S\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eFull Spectrum LED Grow Light\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVeg Footprint\u003c\/td\u003e\n\u003ctd\u003e2.5' x 2.5'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlower Footprint\u003c\/td\u003e\n\u003ctd\u003e2' x 2'\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Draw\u003c\/td\u003e\n\u003ctd\u003e250W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePBAR Output 280 to 800nm\u003c\/td\u003e\n\u003ctd\u003e531 µmol\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUV Output 280 to 400nm\u003c\/td\u003e\n\u003ctd\u003e16 µmol\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePAR Output 400 to 700nm\u003c\/td\u003e\n\u003ctd\u003e476 µmol\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIR Output 700 to 800nm\u003c\/td\u003e\n\u003ctd\u003e40 µmol\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpectrum\u003c\/td\u003e\n\u003ctd\u003ePhyto Genesis Full Spectrum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Colors\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimming\u003c\/td\u003e\n\u003ctd\u003e0 to 10V, 15% to 100%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e15\" x 15\" x 4.5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e24 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Count\u003c\/td\u003e\n\u003ctd\u003e112\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSP Voltage Range\u003c\/td\u003e\n\u003ctd\u003e100 to 250V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSC Voltage Range\u003c\/td\u003e\n\u003ctd\u003e100 to 277V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Factor\u003c\/td\u003e\n\u003ctd\u003e0.99\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent at 120V\u003c\/td\u003e\n\u003ctd\u003e2.08A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent at 208V\u003c\/td\u003e\n\u003ctd\u003e1.20A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent at 230V\u003c\/td\u003e\n\u003ctd\u003e1.09A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent at 240V\u003c\/td\u003e\n\u003ctd\u003e1.04A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Cord Length\u003c\/td\u003e\n\u003ctd\u003e8 ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat Output\u003c\/td\u003e\n\u003ctd\u003e853 BTU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e4°F Below Zero to 104°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMean Time Between Failure\u003c\/td\u003e\n\u003ctd\u003eMore Than 70,000 Hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpected Fan Life\u003c\/td\u003e\n\u003ctd\u003eMore Than 70,000 Hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eUL 1598, UL 8800, ETL, CE, FCC, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e5 Years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Black Dog LED","offers":[{"title":"PhytoMAX-4 4SP \/ 120V NEMA 5-15 Cord","offer_id":50077830414586,"sku":null,"price":879.0,"currency_code":"USD","in_stock":true},{"title":"PhytoMAX-4 4SP \/ 240V NEMA 6-15 Cord","offer_id":50077830447354,"sku":null,"price":879.0,"currency_code":"USD","in_stock":true},{"title":"PhytoMAX-4 4SC \/ 120V NEMA 5-15 Cord","offer_id":50077830480122,"sku":null,"price":899.0,"currency_code":"USD","in_stock":true},{"title":"PhytoMAX-4 4SC \/ 240V NEMA 6-15 Cord","offer_id":50077830512890,"sku":null,"price":899.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0847\/7487\/9482\/files\/cc005bd4-6567-478d-8a12-743162ca8139.png?v=1786806374","url":"https:\/\/cultivasupply.com\/products\/blackdog-phytomax-4-4s-led-grow-light","provider":"Cultiva Supply","version":"1.0","type":"link"}