Welcome Shop LED Lights, Here you can buy Grow lights are usually used for indoor gardening, plant propagation and food production, including led plant grow light, led grow lights, grow lights for plants, best led grow lights, growing plants indoors with artificial light, best grow lights, how to make grow lights for indoor plants, how to use grow lights for indoor plants, indoor hydroponics and aquatic plants. Although most grow lights are used on an industrial level, some small-scale/domestic usage of these lamps has also been found.
According to the inverse square law, the intensity of light radiating from a point source (in this case a bulb) that reaches a surface is inversely proportional to the square of the surface's distance from the source. So if an object is twice as far away, it receives only 1/4 the light. This is a serious hurdle for indoor growers, and many techniques are employed to use light as efficiently as possible. Reflectors are thus often used in the lamps to maximize light efficiency. Plants or lights are moved as close together as possible so that they receive equal lighting and that all light coming from the lamps wind up on the plants (rather than partly besides it). Often, the distance between lamp and plant is in the range of 24 inches (with incandescent lamps), up to 4 inches (with other lamps as compact, large and high-output fluorescent lamps). Many home gardeners cover the walls of their grow-room with a reflective material, or alternatively, white paint to maximize efficiency.
Light requirements of plants
To determine the appropriate lighting (and the lamp to be best used), the specific needs of the plant need to be determined. To arrange optimum lighting, the lighting present in the plant's natural environment need to be imitated. Of course, the bigger the plant gets the more light it requires; if there is not enough light, a plant will not grow, regardless of other conditions.
For example vegetables grow best in full sunlight and high light levels are needed to grow vegetables well indoors (fluorescent lamps, or MH-lamps are thus preferred). Foliage plants (e.g. Philodendron) grow in full shade and can grow normally with relatively little artificial light (thus for the latter, regular incandescents may already suffice).
In addition, plants also require both dark and light ("photo"-) periods. Therefore, lights may to be timed to turn them on and off at set times. The optimum photo/dark period depends on the species and variety of plant (some prefer long days and short nights and others prefer the opposite, or something in between).
For indoor gardening, one of the most important topics is light density, measured in lux. Light density is the amount of light incident on a surface. One lux equals one lumen (unit) of light falling on an area of one square meter. A brightly lit office would be illuminated at about 400 lux. In Imperial (pounds-feet) terms, a foot-candle, or the intensity of a standard candle on an area of 1 square foot, is about 10.76 lux. In professional farming PAR watt or microeinstein per squaremeter
second is used instead of lux, because lux is optimized for human vision, not for photosynthesis, and can be very misleading in case of non-white lightsources, like the purplish-looking LED growlights.
LED grow lamps
LED panel light source used in an experiment on plant growth by NASA. Pictured plant is a potato plant.Recent advancements in LEDs have allowed for the production of relatively cheap, bright, and long lasting grow lights that emit only the wavelengths of light corresponding to chlorophyll's absorption peaks. These lights are attractive to indoor growers since they do not consume as much power, do not require ballasts, and produce a fraction of the heat of HID lamps. Since there is a significant reduction in heat, time can be extended between watering cycles because the plants transpire less under LED grow lights. A caution is warned to those growing with LEDs not to over water the plants.
There are four chlorophyll absorption peaks and LED grow lights use four different types of LEDs to hit all four peaks (two red and two blue).Early LED grow lamps used hundreds of fractional watt LEDs and were not effective replacements for HID lamps. Newer advanced LED grow lamps use automotive grade 2-3 watt LEDs and have shown similar results to HID lamps.
Full light spectrum plant grow light for Indoor Plants and Indoor Gardening.
LED grow bulbs are capable of much greater light intensity than fluorescent bulbs and are available in full-spectrum form. An easy rule of thumb: Fluorescent bulbs are often used when growing just a handful of plants; LEDs are preferable for larger quantities since you can achieve higher light intensity per square foot. Another advantage of LEDs? They produce very little heat compared to other bulbs – an issue that can become problematic when you have a lot of lights in a small space.
Why using Full Spectrum:
Make sure you pick the correct spectrum of light for the growth stage of your plants.
There are two types of light spectrums to look for when choosing bulbs: broad and targeted. A targeted spectrum uses specific wavelengths of LEDs to match the photosynthetic requirements.
The best bulbs feature a targeted spectrum, which may include UV, red light, white light, IR, and blue light.
UV: This spectrum helps with growth stimulation, disease reduction, and promoting sugar and protein.
Blue Light: Helps with the overall plant phototropism work.
White Light: A full spectrum will fill in for any missing spectrums.
Red Light: Suitable for promoting photosynthesis, sprouting, as well as blossom. Also, it contributes to the synthesis of chlorophyll and the formation of flower pigments.
IR: Plays a vital role in the development of heat necessary to ripe fruits.
We recommend you choose a bulb with a targeted spectrum that includes all of the abovementioned spectrums.
Red Light or Blue Light for Plants?
While outdoor plants in full sun will naturally receive both red and blue light, indoor plants might be lacking in it. Even plants next to a window may not be receiving enough of a certain part of the color spectrum. If your plant is getting leggy or losing the green color in its leaves, odds are it’s not getting enough blue light. If it’s not flowering at a time you know it should (this is a particular problem for Christmas cacti that refuse to bloom at Christmas), it’s probably lacking in red light. You can supplement blue light with fluorescent lamps. While using red light for plants is possible with incandescent bulbs, these often produce too much heat to be kept near houseplants. Use a broad spectrum fluorescent bulb instead. Sometimes, pollution can block essential light. If your unhealthy plant is next to a particularly dirty window, the solution to your problem could be as simple as giving it a good cleaning to let in as much light as possible.