I am using it for mid veg and flower..but lamp will burn out prior than advertised. Early finish? Research leads me to believe that combining one Phillips Greenmaster 3100K bulb and one Eye Hortilux 4200K … Kills LED!! Question. Posted by. Installed a brand new Phillips 4200k CMH lamp into this fixture and noticed immediately that it would flicker every couple minutes. Flowering out plants with CMH light and noticing a fair amount of amber trichomes pretty early on in flowering. just a much higher CRI, (wider SPD) TERRIBLE light. This bulb seems to have the brightness and intensity of a 3100K, but that beautiful spectrum of a well balanced veg bulb. All their packages also include both a 120 and 240 Volt power cable, mogul base socket adapter and the best CMH grow light on the market, either the 3100K or 4200K Philips lamp. 2 years ago. I understand a dual bulb cmh with one 3100k and one 4200k probably crushs in flower but I'm speaking strictly veg so will two 4200k 315w cmh beat 1 4200k 630w cmh for veg growth rates, tight nodes, vigor. Staffed exclusively by industry experienced professionals. With an improved vegetative horticultural spectrum and outstanding efficiency, the Philips MasterColor provides lush, compact growth for higher quality yields. Hi everyone, looking for some Ceramic Metal Halide advice from experienced growers using it: I’m thinking of running one 630w open fixture CMH in my 5x5 tent. I have been using the CMH throughout the grow but switched bulbs from veg to flower. I was wondering if switching the spectrum to 4200K for the last two weeks of flower would be a worthwhile experiment. Installed a brand new Phillips 4200k CMH lamp into this fixture and noticed immediately that it would flicker every couple minutes. $135.99. 3100K and 4200K LEC lamps both emit a spectrum capable for growing plants full-cycle (veg through flower). Growers House started in 2011 as a family-owned business … It also generates less heat than HPS and MH. Option to add 2 each 3100k CMH 315w bulbs The Luxx Lighting 630 CMH is becoming the most popular lamp in the horticultural industry in years. 3,100K vs 4,100K. it has nearly the same color temp as HPS. 3,100° K Green Power or 4,200° K color temperature lamps available. Great White Bud 1,649 views ... Grow Light System Kits for Indoor Plants. Close. On the 2nd day of running the fixture the CMH bulb would not fire. According to Royal Queen Seeds, the most common model of LEC light or fixture is the 315W with a 4200K color bulb, this one is a tough competition for the LED grow lights which is also a great all … Incredibly high 1.95 PPF (photosynthetic photon flux) per watt per second light source. This bulb contains precision gasses for an enhanced spectral output. The 3K 315W Single Ended CMH more closely matches sunlight The 3100K lamp is biased towards the red wavelength (ideal for flowering), and the 4200K lamp is biased towards the blue wavelength (ideal for vegetative growth), however both offer a wide enough spectrum for the full-cycle of a plants life. Discussion in 'Growing Marijuana Indoors' started by veGas_333 ... You may have a better time with the 4200K Philips mastercolor rather than the 3100K. Anyway the 3100k bulb is on order and will be here when I return Saturday night.