{"product_id":"mars-hydro-fc4000-samsung-lm301h-evo-bar-led-grow-light-2x4-high-ppe","title":"MARS HYDRO FC4000 Samsung LM301H EVO Bar LED Grow Light 2x4 - High PPE","description":"\u003cp\u003eIn this review of the MARS HYDRO FC4000 bar LED grow light the bottom line is simple: this fixture is aimed at serious indoor growers and small commercial setups who need high efficiency and even coverage in a 2x4 or 4x4 tent. The reviewer found the full spectrum Samsung LM301H EVO diodes and a reported overall PPE of 2.85 mol\/j produce strong flowering results and bright, uniform output, while the app control and daisy-chain option give real convenience for multi-light runs.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSamsung LM301H EVO diodes:\u003c\/strong\u003e Delivers high photon efficiency that supports vigorous flowering and higher quality yields in commercial and hobby grows.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull spectrum coverage:\u003c\/strong\u003e Includes rich red IR and warm to cool whites so the same fixture can be used from seedling through flowering stages.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh PPFD and PPE:\u003c\/strong\u003e Provides strong light intensity with a reported PPFD up to 871 umol\/m2\/s and an overall PPE of 2.85 mol\/j for efficient electricity use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmart control ready:\u003c\/strong\u003e Works with the Mars Hydro app for scheduling, sunrise and sunset simulation, and OTA updates when used with the separate controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal design and long cord:\u003c\/strong\u003e Wave-shaped heat sink and a 3.28 ft power cord let you place the driver outside a tent to reduce heat at canopy level.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDaisy-chain dimming:\u003c\/strong\u003e Can be dimmed manually or via app and linked up to many units for synchronized control across a grow room.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe FC4000 is best for growers running a dedicated 2x4 or 4x4 grow tent, small commercial rooms, or multi-light racks who need \u003cstrong\u003ehigh efficiency\u003c\/strong\u003e and even coverage. It suits users who value app control, scheduling, and the ability to daisy-chain fixtures for larger setups.\u003c\/p\u003e\n\u003cp\u003eLess suitable are casual hobbyists on a tight budget who do not need commercial-level PPE or those who require an integrated controller out of the box, since the iConnectu controller must be ordered separately and some users reported dimmer inconsistencies.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh light output and efficiency from Samsung LM301H EVO diodes support vigorous flowering and yield.\u003c\/li\u003e\n\u003cli\u003eFull spectrum including rich reds and warm whites covers all growth stages with even bar-style distribution.\u003c\/li\u003e\n\u003cli\u003eSmart app control, OTA, and daisy-chain capability simplify multi-light management for larger grows.\u003c\/li\u003e\n\u003cli\u003eWell thought thermal design and external-driver placement option reduce canopy heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eController is sold separately, so full smart functionality requires an extra purchase.\u003c\/li\u003e\n\u003cli\u003eSome users report mixed reliability with the dimmer switch and long-term lifespan concerns.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eMARS HYDRO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eFC4000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiodes\u003c\/td\u003e\n\u003ctd\u003eSamsung LM301H EVO (765 diodes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower\u003c\/td\u003e\n\u003ctd\u003e320W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePPE\u003c\/td\u003e\n\u003ctd\u003e2.85 mol\/j\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePPFD (reported)\u003c\/td\u003e\n\u003ctd\u003eUp to 871 umol\/m2\/s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower cord\u003c\/td\u003e\n\u003ctd\u003e3.28 ft (driver placement flexibility)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe FC4000 is a strong choice for growers who need a high-efficiency, full spectrum bar light for 2x4 or 4x4 tents and small commercial racks. It combines excellent light quality from Samsung LM301H EVO diodes with app-enabled features and daisy-chain scaling, making it good value for users prepared to add the separate controller and monitor dimmer reliability over time.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the unit include a controller?\u003c\/strong\u003e\u003cbr\u003eThe iConnectu controller is not included and must be ordered separately to access app scheduling and OTA features.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan multiple units be linked?\u003c\/strong\u003e\u003cbr\u003eYes, the FC4000 supports daisy-chaining and can link many fixtures together for synchronized dimming and control.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for a 2x4 tent?\u003c\/strong\u003e\u003cbr\u003eYes, it is designed for 2x4 coverage and also provides strong results in 4x4 flower spaces when positioned correctly.\u003c\/p\u003e","brand":"MARS HYDRO","offers":[{"title":"Default Title","offer_id":48680488763611,"sku":"B0CG9KQJP9","price":339.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61z_IPIlQkL._AC_SL1500.jpg?v=1778700455","url":"https:\/\/gearmusthave.com\/products\/mars-hydro-fc4000-samsung-lm301h-evo-bar-led-grow-light-2x4-high-ppe","provider":"GearMustHave","version":"1.0","type":"link"}