Wheatgrass doesn’t like full sunlight but still needs a good light source to photosynthesise and produce chlorophyll. Artificial Greenhouse lights have improved over the years however they cannot replace the powers of natural sunlight. Not only is sunlight free, it provides more energy than artificial light can.

Under a two 40 watt bulb fluorescent light set up with standard bulbs, you will want to get the plants leaves within a few inches of the bulbs. We prefer C50 (5000K) bulbs, but you will probably be able to do fine with almost any of the commonly available bulbs. See similar questions...

The amount of UV radiation that a person is exposed to depends on many factors including time of day, season and latitude. The spectrum of UV radiation from a tanning bed is similar to that of sunlight. It is less intense than being in the sun at the equator in June at noon, but more intense than being in the sun in Boston or San Francisco at the same time of year. See similar questions...

Natural sunlight is a good healer for many people with psoriasis, but there are some who do not respond and some who are made worse. Sunlight consists of several different types of light across a spectrum ranging from infra-red, through visible light, to ultraviolet (UV). It is the ultra-violet part that can help in treating psoriasis. See similar questions...

I am now selling the best full spectrum light bulbs on the market. You can grow in the dark with 3 of these lights or you can just use one in a goose-neck floor lamp or clip-on fixture for supplemental lighting in the fall and winter months. The grass grows fastest if it has 14 hours of light so you have to add light in the winter. Please believe me, you do not need light at every level. The light would be too close to encourage growth. See similar questions...

I actually raise my Paphs on tables with humidity trays along an expansive run of windows (they're almost like a greenhouse) which have semi-shaded southern exposure which I'm told is too much light. However, I have not had problems with "sunburn". The Phrags (with the exception of the terrestrial caudatum types) are grown in trays which collect the irrigation water and allow the Phrags to "soak" for a day or two before the water evaporates; THEY LOVE THIS. See similar questions...

Yes, your natural nails will continue to grow under the acrylics. I often describe it as "taking the acrylic along for a ride". Clients are often amazed that their nails now grow "so fast", when in reality, they simply are just not breaking off now. The common goal for most acrylic nail wearers is to have their natural nails with an acrylic overlay - this will occur within a few fills providing you don't break one that needs to be repaired with a tip or a form. See similar questions...

Coral larvae, which are millimeter-sized freely-swimming baby corals, will only settle and grow on clean limestone rock. This is why conventional artificial reefs made of tires or concrete rarely exhibit hard coral growth. But, when these coral larvae find a limestone surface, they attach themselves and start to grow skeletons. Mineral accretion is exactly what they are searching for. As a result, there are very high rates of natural coral settlement on Biorock structures. See similar questions...

When it comes to how corals grow, each category of animal requires its own unique lighting requirements, but many share one common trait; photosynthesis in order to survive. This light will grow live coral and your marine life will thrive. The light intensity and the color temperature are what you need to grow most species of coral. That said, you should read as many opinions as you can that relate to your set up. See similar questions...

We recommend photo flood light fixtures with daylight balanced compact fluorescent bulbs. The photo flood fixtures are easy to adjust and they stay locked in position. Professional models are available in floor standing or smaller tabletop sizes. Daylight balanced compact fluorescent bulbs produce a nice white light that requires little or no color correction and they have a very low heat output which makes them easy to work with. (For a table comparing the various types of bulbs click ( here). See similar questions...

Research at Cornell and other universities has proven that most special "grow lights" do not affect plant growth appreciably. This type of lamp usually costs two or three times more, yet lasts about half as long, making them considerably more expensive. Each Klima-Gro is equipped with GE's most advanced lighting technology. SP30 fluorescent lamps produce excellent color, outstanding lumen maintenance, unsurpassed light output and GE's longest lamp life. See similar questions...

Natural Vitamin E (d-alpha-tocopherol) has about twice the biological activity than commonly used synthetic Vitamin E (dl-alpha-tocopherol). LifePak also provides mixed natural tocopherols (alpha, beta, gamma, and delta tocopherols), which further enhance the antioxidant protection provided by Vitamin E. See similar questions...

You won't find a traditional flashlight that can hide under a 25-cent piece and that weighs only 5.5 grams (about the same weight as that quarter) and that you can comfortably carry in your pocket without even knowing it's there. A typical flashlight is large and bulky and uses 2 "D" cells and runs for about 5 hours of continuous use. The RED, ORANGE, and YELLOW Micro-Lights run for 120 hours or about 5 days continuous use. See similar questions...

Many types of orchids grow very well under lights. Be sure you buy a good quality "grow light" and place the light above your plants (The distance between the light and your orchid will depend on the type and wattage of the light. Read the supplied manufacturer's directions). You will want to use it at least twelve hours a day. Some orchids need the shorter days of winter to initiate their blooms. Check the lighting requirements for each type of orchid you have. See similar questions...

Hey Ron i was wondering if you can make your own Hydroponic Lights and in the 11 plant System do you need to put pea gravel in the cups or just the Plant by itself P.S You have really inspired me to a new Hobby Yes if you buy a ballast, a socket and a bulb. But then you have to wirer it all together. Home Depot has a 175 Watt HPS yard light for $50.00. See similar questions...

Natural sunlight varies considerably according to the time of day, season and proximity to the equator. UVB levels in the early morning are low as these wavelengths bounce of the earth's atmosphere, gradually increasing to a peak that can be as high as 10% by mid-day. See similar questions...

you can see by the energy savings and longevity of the CFL, anywhere the lamp will fit is a good place to use them. However, the best places for compact fluorescent lights are in frequently used fixtures that are on for at least three hours at a time. Difficult to reach fixtures are also good places to put compact fluorescent lights because you will have to change them less often. See similar questions...