UNIT FARM UF2000 LED Grow Lights Full Spectrum Hydroponic Growing Light VS EnFun Updated FS-2000 Full Spectrum LED Grow Light 4x4ft

 When growing plants indoors, replicating the effect of sunlight is often the biggest hurdle. Sodium, fluorescent, and HID lamps emit too much heat, and are very power hungry.Modern LEDs are superior in these two aspects. This article will introduce you to Some knowledge about LED lights and comparison of 2 LED grow lights.

What’s PAR and Why It’s Important

PAR stands for ‘Photosynthetically Active Radiation. And although some LED light manufacturers (wrongly) use the term PAR when talking about a light’s intensity, PAR is not a way to measure the intensity of your light.
PAR is the range for all the different wavelengths/colors of light that plants use for photosynthesis.

PAR Wavelengths and absorbtion levels
Full PAR Range. As you can see plants need mostly blue and orange/red wavelengths, but could benefit from some green light as well.
For your plants to grow optimally, your LED light should have all the different wavelengths/colors of light that makeup PAR. But especially important are:

The blue wavelengths (for vegetative growth), and;
The orange/red wavelengths (for the flowering process).
Luckily, most LED manufacturers are aware of PAR and design their lights in such a way that most of the wavelengths/colors of light that fall within the PAR-range are present.

HID lights emit ALL the different wavelengths/colors all the time. This even includes wavelength/colors that fall outside of the PAR range! What this means is that HID lights waste quite a lot of electricity, because they’re using power for colors/wavelengths that fall outside of the PAR range and thus are useless for your plants!

If you get the right LED light, your light will mostly have the wavelengths/colors of light that fall into the range of PAR and wavelengths that fall into the deep and far-red spectrum (which are essential for the Emerson effect). Your light will largely emit light that’s actually being used by your plants for photosynthesis. This way, little to no electricity goes to waste.

What’s PPFD and Why It’s Important

PPFD stands for ‘Photosynthetic Photon Flux Density.’ PPFD is a measurement of light intensity, and it says how many light photons that fall within the PAR-range (expressed in micromoles) hit a given square meter per second: μmol m(-2)s(-1). A photon is the most basic and smallest unit of light.

PPFD explained: Essentially, what PPFD does, is measure the intensity of your light. This means to rate the quality of a LED light, PPFD is one of the most critical metrics.

But PPFD is what mostly matters to your plants. And what matters most are the PPFD values in the orange/red wavelengths, because these are the wavelengths that have the most impact on your yield in the flowering stage of your plants.

Below is shown how much PPFD is needed as a minimum for your Cannabis plants to grow and give you at least some yield:

255 μmol m(-2)s(-1) — 347 μmol m(-2)s(-1) PPFD on a 24 hours light schedule.
383 μmol m(-2)s(-1) — 520 μmol m(-2)s(-1) PPFD on a 18 hours light schedule.
510 μmol m(-2)s(-1) — 694 μmol m(-2)s(-1) PPFD on a 12 hours light schedule.

The guideline above is the minimum PPFD you’ll need to produce a decent yield. Your plants will grow and yield at a much better rate in the flowering stage if you get close to the optimum PPFD value between:700–1500 μmol m(-2)s(-1)
The range above is the range where your plants will thrive in the flowering-stage on anything except a 24-hour light schedule, but a 24-hour light schedule isn’t the best practice anyway. But keep in mind this is the average PPFD value. For optimal results, you never want your PPFD to drop below 510 μmol m(-2)s(-1) and never to go above 1500 μmol m(-2)s(-1) at any given point of the coverage area.

The exact optimum PPFD value is a controversial subject, and is among other things, highly dependent on:Whether you’re supplementing with CO2;
The growth stage in which your plants are: in the flowering stage your plants will need more intense light;
Your specific strain: Sativa-dominant strains thrive under more intense light than Indica-dominant strains, and;
Your light cycle: the longer your period of light, the lower the optimal PPFD value is and vice versa.

UNIT FARM UFL3000 LED grow light full spectrum growing light

Features:

UNIT FARM LED grow light can replace the traditional 400W HPS/MH growth lamp. The 736 diode consumes only 200 watts.When the same power is drawn, it is 30% more than other LED lighting, which is more energy-efficient. Suitable for 4x2FT vegetable space, 22 inches. For 3x2 feet (about 7.6x5.1 cm) flowering, 16 inches (about 40. UFL3000 and UF1000 combination, very suitable for 4x2 feet (about 40.6 cm) flowering space.
OSRAM diode with a long life of 10,000 hours. Detachable drive, 70 inches long (about 177.8 cm), easy to control the environment. The ultra-thin panel can be adapted to different positions. Make full use of the planting space.
High color rendering index-90, easier to detect the health of your plants. Abundantly cover all growth stages. Including 3000K, 5000K, 380 nanometers, 660 nanometers. The extra infrared rays make the plants stronger. The extra UV and blue can create delicious flavors.
Although there is no dimmer, but only 2.6 kg (6 lb), it is easier to adjust the height of the suspension to adjust the light intensity. The higher the light intensity, the higher the light intensity.

EnFun Updated FS-2000 Full Spectrum LED Grow Light 4x4ft

Features:

EnFun LED grow light has high efficiency and low energy consumption. The plant growth lamp can be adjusted with an independent detachable driver, and only consumes 200W (the driver supports tuning to 240W). 2.7 umol/j, high energy efficiency, creating a better ceiling light penetration rate, 50% lower than HPS or fuzzy lights, and more gains.
Sunlike full-spectrum and red light switch; indoor plant growth light uses Epistar’s new LED chip, which is brighter than other chips, and the PPF quality is the same. Excellent full spectrum (3000K, 5000K, 660nm, infrared 750nm, 400nm) a total of 576 LEDs. Grow light add a red light turn on/off,Red light is turned off when growing and turned on when flowering to promote flowering and growth..
It saves up to 50% energy than other led grow lights. Perfect for 4x4FT footprint.
The noiseless and fanless LED growth system is suitable for indoor plants. The large solid aluminum area quickly dissipates heat, reduces the loss of light in aisles and walls, increases the light intensity, and allows your plants to gain more energy without burning your plants.

Things to consider before buying

There are a couple of things you absolutely need to consider before choosing the best LED grow light:

1) Spacing: You absolutely need to ensure that you have an idea of the amount of space you want to cover with your LED lights. Each light has a maximum range of space that it can cover, and it’ll be important to understand the measurements of your grow space down to the centimeter. If you currently do not know what that is, you should find out now. After that is done, make sure you read reviews and feedback from others on the actual space that the LED light can cover.

2) Brand/Budget/Price: This will be important as the higher-quality lights typically yield the best results. If you are a beginner, you will likely want to start with a lower priced option to get your feet feet wet. If you are more experienced, it never hurts to go with the quality, higher-priced option. In addition, brand and quality of the light is very important. A good brand that has raving customer reviews, is almost always, a sure bet.

3) Spectrum: A full spectrum LED grow light will go a long way in terms of helping your plant growth. You’ll need red & blue spectrums, but also infrared and ultraviolet, depending on the stage. It’s important to have a powerful light, with different wave lengths to ensure maximum growth. The full spectrum yields are a bit newer to the industry, but they are certainly making headway to any good growers catalog. They run cool and don’t need any additional fans, they cost less overtime given the electrical savings, and the durability is second to none. It is highly recommended to purchase a full spectrum LED grow light. Most LED lights have a range of colors being emitted (full light spectrum) — the best lights offer the full range, including UV light.

4) Electrical Usage: Your LED lights will need to have durability and great electrical efficiency as well. A good LED light should be operating for at least 10–12 hours a day. When researching a good LED light, you’ll need to thoroughly understand what the total output is (1000w, 400w, 300w etc). The higher you go, the more powerful and more likely leads to less electrical usage (and more cost effective for you).

5) Light Control: Depending on the stage, you’ll want to ensure that your plants receive the proper amount of lighting (down to the exact hour).

Seedling Phase: 16 hours on, 8 hours off
Vegetative Phase: 18 hours on, 6 hours off
Flowering Phase: 12 hours on, 12 hours off

It’s extremely important that light cycles are followed to a tee as it can severely alter the growth and potency of your plants.

Conclusion

Your plants are alive just like you. You don’t mind if someone takes you to the buffet, so why not do the same for your plants? Choose wisely and see what our requirements are. I wish you all the best and find the best LED grow light for cannabis.