Dont know about using the Double ended cmh bulbs in ballasts not made FOR the cmh bulbs specifically, but my dual bulb under one hood does pretty well. Some require even further distance from plants, even as much as 3 feet away. This is great for veg when the plants need to establish strong branches for the rest of the grow.What’s the proper CMH grow light distance from the plant canopy?It depends on the light wattage (remember, more watts gives off more heat).
Light Distance for Growing Cannabis with CMH Lighting. Here are some examples I’ve found the distances for: Grower’s Choice 315W CMH – 2.5-3 feet (76-91 cm) from plants; Hortilux 315W CMH – 3 feet (91 cm) from plants; Vivosun 315 CMH … If you’re looking for another option besides the Philips, the Ushio HiLux Gro is a solid choice. When lamp is properly installed, the base will stop turning. Posted : It all depends on the area you're trying to cover. It depends on the light wattage (remember, more watts gives off more heat). I heard its a hps with a mh spectrum? They go by different names, but they are the same light: CMH: Ceramic Metal Halide CDM: Ceramic Discharge Metal Halide LEC: Light Emitting Ceramic. These lights will usually come at 315w, but can come double ended and give you 630w from one light. Is this to far?
CMH 315 Plant Distance Questions. LEC Sun System 315W CMH/Philips Elite Agro 930 - Virgin Flowering Run. Posted : The Ushio HiLux Gro is … I could of course put the led back in and drop it down, or I would prefer to get a dimmable ballast for the 315. If you’re looking for something that’s slightly more budget-friendly, you’ve got some options, like the SunStream Double Bulb system. Wish the aluminum hood was wider though so I could lower it.
For indoor growing, you’ll want to choose a CMH that is easy to handle – in other words, it shouldn’t be impossible to make quick adjustments to keep your plants happy. Sure, there are a few downsides to using CMH bulbs, but this is the case for every type of bulb. Ushio is well-known for their quality bulbs and earned most of my “best value” picks in my best HPS bulb roundup.
Small scale grow (2 plants) to provide medicine for wife and myself. The main deciding factor once you’ve confirmed that CMH lights are right for you is whether you need 315 or 630W. Esteemed Member. I have it like 24 inches away at the moment . Also the only dimmable ballast I can find is a lumatek, and the photos show the dial only going down to 50%, this might not be low?After 3 days under the CMH I put the LED back in and is looking happier to me. Advice? The EYE HORTILUX CMH 315 Grow Light System will only accept CMH lamps with a PZGX18 (bi-pin) base. It comes with a cutting edge ballast that features advanced low-frequency Square-Wave technology for high efficiency, reliability, and no electromagnetic interference. Massmeds420 Well-Known Member. If you’ve already got a ballast and hood setup, there’s no need to buy an entire CMH grow light kit. The Ushio HiLux Gro is … When you dim a CMH you're not getting the optimal light spectrum and you're really not utilizing the benefits of CMH (Quality Light Spectrum! CMH lights give off a more balanced color spectrum, while HPS technology focuses on the red light wavelengths (which is more ideal for producing beefy buds during flower).
CMH grow lights are becoming more affordable as the demand for them grows, but they’re still not the cheapest type of light on the market.
If you’re handling a small grow space, our recommendation is the 315W Vivosun, but for more coverage, the BloomGrow system is our top pick. Log in to Reply Ushio is well-known for their quality bulbs and earned most of my “best value” picks in my best HPS bulb roundup. Best 315W CMH Grow Lights for a Small Grow. Question. Sent from my iPhone using Grasscity Forum . I plugged in the light with 2 bulbs to test, and quickly and obviously determined 630w is too much for my 4 plants still in veg . 630W CMH lights aren’t for everyone, especially if you’re short on ceiling space and have to hang your lights closer to the canopy. Posted : Posted :
Us old folks love being part of the DGC community too.Long time hobby grower who recently converted from bottled nutes to living soil. 4x315 all 930 philips agro bulbs. Growers may request badges, but all badges are awarded at the discretion of Dr Coco and Dr Photon. Thanks. Uva/uvb, can't go wrong.
The ballast is rated to last for up to 50,000 hours, so plan on getting lots of use out this CMH grow light.