2015年4月13日星期一

Affordable but quality led lights fixtures


LED light fixtures have many benefits. Environmentalists loved them for their energy efficiency; techies loved them for their high tech appeal; designers loved them for their flexibility… but what do they have to offer for normal people that just want a comfortable lighting environment?

Actually, LED lighting fixtures addressed quite a few flaws that haunted traditional light fixtures, and I am speaking strictly from the point of normal user experience. Let’s see what problems traditional lighting have and make comparisons.

Light fixtures generate much less heat comparing to light fixtures with incandescent light bulbs. Incandescent bulbs generate light by actually burning the filament, however, as much as 95% of the energy used during this burning process is lost as heat. Aside being extremely inefficient for illumination purpose, the generated heat is very annoying for people closed to this light source. Imagine yourself working with a table lamp with an incandescent light bulb in a hot summer night, the radiated heat is distracting. Maybe you can crank up the air Conditioner, but that means using extra energy. LED lighting doesn’t suffer this heating problem. Although

LEDs are not completely cold to touch, they are much more efficient at converting electricity to light. As an

everyday user, you don’t have to suffer the excessive heating problem with LED light fixtures.

 Light fixtures with these specific spectrums may also be used in addition to full spectrum LED grow lights or

other types of grow lighting to provide an extra boost during veg and bloom phases of your grow.

Twilightgroups discount light fixtures have been shown to grow from seed to flower with excellent flowering results!

A study published this April concluded that “the most efficient HPS and LED fixtures have equal efficiencies, but the initial capital cost per photon delivered from LED fixtures is five to ten times higher than HPS

fixtures.”

2015年4月7日星期二

Lighting your led aquarium lights

LED aquarium light is one of the most important aspects of successful reef aquaria and one of the most confusing for many hobbyists.   
Magazine ads often boast that a particular lighting system is "best", leading to further confusion.  The truth is that there is no universal "best" lamp.   One
should make decisions based on what they wish to achieve.  This short article will examine various options available to the beginning hobbyist and aid in choosing an appropriate set-up for his or her needs.   


While I don’t think there are any true experts in the LED aquarium light field, I’ll convey my personal observations made while examining different lights.   This research has been conducted over the last 6 years, during which I have made over 60,000 light measurements under lamps ranging from 9 watt Power Compacts to 1,000-watt Sulfur lamps.   I also managed a commercial coral farm for two years and made observations and measurements of literally hundreds of marine invertebrate species.   With this introduction out of the way, let’s get started.   
We’ll begin with the most important part of any LED aquarium light - you. 

 

2015年4月1日星期三

Size of the garden and installation of led grow lights


If you’ve already carried out indoor gardening, you would already know the concept of space. If not, simply measure out the length and breadth of your indoor growing area (for choosing the growing area, see next section) and figure out how many plants you will be using. Based on this estimate, decide the wattage and the number of bulbs that you would require.

In case, you are upgrading from HID lights to led grow lights(as a vast majority of growers and horticulturists are doing), the following quick reference table may be helpful.


Each plant has its own vegetative and flowering phases, and needs specific conditions for growth. As a grower, it is your task to figure out how the plants will grow efficiently (though for the average case, we have provided some growing tips in a later section). Once you have figured out your optimal plant growth conditions, you can purchase the LED grow lights accordingly, keeping in mind the thumb rule that it is always better to go for specific wavelengths rather than a full spectrum white LED light.



Getting Ready To Install LED Grow Lights

Now that you know how to choose the 90w LED lights, it is time to find out how to install them. Before you head to Twilightgroups to purchase them however, you need to get your “grow room” in order (assuming of course that you’re going in for small-scale indoor growing, commercial greenhouse growing parameters are different).

The solution to led grow lights


The solution is to dim out one color of LED grow light gradually even as the other is gradually strengthened. For instance, if a plant goes through the vegetative phase in summer and the flowering phase in autumn, it is imperative that the blue lights be dimmed gradually and the red light be increased in step with the changes occurring in the plant’s physiology. As may be obvious, this means that the LED light in question must have independent dimmers for each of the different colors of LED lights, such that the simultaneous increase or decrease in intensity can mimic a growth cycle of many months’ duration.

While this is important for both home growers and commercial growers, it is more vital for the latter because their viability often depends on their ability to provide the plants which are naturally not available during that particular season. Furthermore, they are often called upon to grow plants at short durations, thereby eliminating any possibility of seeking the sun’s help. In such cases, if the dimming is not one correctly, the plant hormones will not activate at the right time, leading to wastage and monetary losses.



plants have a different spectrum necessity and it is not surprising therefore that the high quality red and green 90w led grow lights that are sold in the market appear dim to us. Such lights, as have been shown in numerous cases, are indeed more optimal for plants than the “bright” HIDs, which appear brighter to us because they produce light in the yellow/green area of the spectrum as well.

What such HIDs are actually doing, however, is wasting the electricity to impress our eyes. Unfortunately, many growers are confused by this and continue to argue that even best quality LEDs are not good enough. No matter how good the grower may be at using HIDs, if he doesn’t have experience with LED grow light , it is better to believe the product reviews regarding the LED light’s capabilities rather than believe such misguided growers.