The intensity of the lamp is measured in Lumen (lm). To prevent this and to prevent senseless power consumption, it is so important, especially with LED lamps, that the correct colour LEDs are used. Well, dehydration and burning will become a problem in the long run. You can set the lamp as bright as you like, but if the leaf is not sensitive to that light, nothing will happen. But photosynthesis, like the tanning of our skin, does not work if the colour of the light is not right. Carbon dioxide and water are converted by light into oxygen and sugars with which a plant grows. (Weed) plants grow and flourish thanks to the process of photosynthesis. Therefore, it is pointless to run a green lamp at high power, so to speak, in the hope that they will grow faster. Weed plants are similarly sensitive to certain colours of light but not to others. And yet blue and UV are not that far apart. Yet we do not turn brown when a blue light hits our skin. This is due to an invisible "colour" of light in sunlight that we call UV radiation.
#Grow light schedule for seedlings skin
Our skin turns brown or red when we walk in the sun. The energy required is much lower for the same light output and the heat production can be lower as a result. One LED only emits a very small part of the visible light. With LED growing it is a different story. That is scientific language for "several colours at the same time". The fact that an HPS is also suitable for the growth phase has to do with the fact that this type of lamp produces a broad spectrum of light. An MH ( Metal Halide) lamp contains a different type of gas and the ignition technique is slightly different to that of HPS. Although you can also use them for the growing period, a cooler coloured grow light is more suitable. Thanks to its warm, yellow light, the HPS ( High Pressure Sodium) is ideal for the flowering period of weed plants. It is fitted with a device to switch it on and prevent your fuses from blowing.
This kind of lamp is actually called a HID ( High Intensity Discharge) lamp. First of all: HPS is the name of the bulb you screw into the lamp. The two lamps use totally different techniques to get that much-needed light onto the leaves of your weed plant. The decision to opt for an HPS lamp or LED grow lamp does not only have to do with lowering the energy bill. Want to experiment with alternative lighting or growing schedules? Check out this article on the pros and cons of extending or drastically shortening the "fake day" when growing weed indoors! HPS lamp or LED grow lamp Many growers agree that these two schedules provide a good balance between respectable yields and a not-too-high energy bill. Later on it says that a 12/12 schedule is needed for your weed to flower. In the guide to growing weed you can read that an 18/6 schedule is usual for the growth phase of the weed plant. In this article we tell you all about light output and the effects it has on growing. There are a number of things to consider. When you imitate the sun and grow weed indoors, you need to choose a grow light. Sunlight or the use of a grow light determine how big your weed gets and ultimately also the yield. Sounded ideal but a 2’ conversion bulb was about $50 CAD… pretty steep considering I needed to convert dozens of bulbs, and entire LED systems could be obtained at that price.During the life of your weed plant, light is the most important factor. Once LED lighting started to take off, SunBlaster did offer a conversion LED bulb that could be used to replace the fluorescent bulbs as they burnt out. They definately made our electric bill go up a bit, but the biggest disadvantages were that they weren’t widely available outside of the spring season, the light emitted from the bulbs decreased over time as the bulbs aged, and the bulbs were ridiculously expensive to replace. The SunBlasters worked well, but put off alot of heat.
I had purchased these initially at Peavey Mart, and some from Vesey’s Seeds. The first lighting system i invested in was the SunBlaster 2’ and 4’ T5 fluorescent lights.
#Grow light schedule for seedlings windows
Our house was not only in northern Canada, but oriented in a west/east direction so I had no south facing windows to take advantage of.
Many years ago I learned quickly that lighting was a MUST.
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