2 strains
@Experimentgreen, That's true, there are many debates if LED's are good for flowering, some believe not so because of the light penetration, while others say different. I myself believe theyr good for vegetation, and use the bloom switch only as supplemental light in flower, because of the infrared and red diodes. As main i use a ceramic discharge light. I've grown before with LEDs only (450w - 200W actual power) in a 90x50cm closet. I can say the buds were small to average in size, and a decent quantity of THC. Most of these lights lack red light in comparison to blue and with a smaller light intensity. i would not use this as a main flowering light again, unless above average coverage. PAR output in comparison with other lights is usually a bit lower. Overall they are not bad lights from seed to harvest, not forget to mention they consume alot less, so you could bring 2 or 3 quality leds for the same price as a HPS or HIDs in terms of monthly electricity costs. For me, i calculate PAR, PPFD and light intensity to monthly cost ratio to get the best out of lights. *tip: go for CMH lights, good in UV/UVB, good spectrum and 50% less costs then traditional HPS and HIDS
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