Supplemental lighting

[Im'One]

Anyone have a preference for supplemental lighting in greenhouses? It needs to be some what moisture safe.

 

[BYF]

Most greenhouse fixtures are rated IP65 or better.

 

[TheDeafZip]

Depends on your power. Can use the stringer lights if power is tight. HPS is best if power permits...

 

[NIKT]

and now something completely different

Anyone have a preference for supplemental lighting in greenhouses? It needs to be some what moisture safe.

https://www.icmag.com/forum/marijuan...6#post17988166

Maybe something that is not intended primarily for growing plants? cheap and efficient. They are likely to be around 2.0 to 2.1 µmol / J

They are not very large, they should not shade too much. Fully waterproof for outdoor installation. In Europe, available, I do not know what it looks like elsewhere. Cheap as dirt.

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SPD 4000K 70 CRI

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1# picture. Comparsion spd with spd 3500k samsung lm301h one. Intended for the cultivation of plants. The difference _ the emission of blue photons is greater. The rest is practically the same.2# picture another comparison of this LM301H one with the typical 3000K 80 CRI _ common for e27 lamps. The area under the curves is the same. pointless but looks nice.

from this topic.

https://forum.haszysz.com/threads/po....127899/page-5

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[Kali killer]

U should ask Mars Hydro Led . they would know..

 

[Mars Hydro Led]

Actually, we do produce lights for greenhouse grow. Check out our SP3000 or SP6500. These two lights have the best penetration because more than 1000 pcs chips are clustered in a narrow PCB board. The narrow board also also help minish light board shadow under sunlight. So they are very suitable for supplemental purpose.

Except this biggest feature, there are more: samsung 301B chip; Dimmable function(daisy chain is available); They can be used with master controller.


Check out through the following links: :yay:
SP3000: https://www.mars-hydro.com/buy-sp-3...-mars-hydro-marshydro-led-grow-light-for-sale
SP6500: https://www.mars-hydro.com/led-grow...trum-led-plant-grow-light-mars-hydro-for-sale

 

[NIKT]

These two lights have the best penetration because more than 1000 pcs chips are clustered in a narrow PCB board. The narrow board also also help minish light board shadow under sunlight. So they are very suitable for supplemental purpose.

Sorry, I don't understand one thing here. Probably my English is very poor.

What do you mean by penetration. It depends on the angle of the light beam and the distribution of plants, their size LAI and K. how much light reaches the lower parts of plants depends on many factors. Lamps intended for greenhouse cultivation are usually small in size, such as the ones you showed. Some of the lamps are equipped with sensors that adjust the flux from the lamps to the value of natural light. To get the assumed DLI values. The lamps to which the links were given have a structure typically dedicated to larger halls or greenhouses. There is a multitude of this type of construction. They are often very rich in 660 nm high efficiency diodes, so as to obtain high efficiencies using a rather small amount of semiconductors. White light as perceived by human sight is close to white but with SDP where 660 nm dominates. This red light is on the edge of the photopic curve of vision, hence the overall impression of a net white light. Nothing new, this type of design was present on the market in the era of power LEDs, colored panels that have almost disappeared from the market now. Probably returning _ the most efficient systems exceeding 3 umol / J are possible to build in this way. In terms of computation, the most advantageous system is the 6500K and 660 nm diodes. The latter _ the right types have enormous energy efficiencies, which in combination with a diode based on blue pumps which are even more efficient, such a diode where a large part of the pump emission remains down, creates it as a whole. Added to this is the nature of the photon, the longer the wave, the more pieces per unit of radiation power. These panels are very cool, a lot of high-class LEDs and a slightly larger share of 660nm than before, but it looks too small to really pull the efficiency of the system upwards, it depends on their class at low, it is a decorative addition at most.

Panels like panels, it is always a cost-quality, here the construction is ok, the rest is nothing new. They are poorly suited to growing boxes because they force large distances from the panel by focusing the LEDs. This dismal arrangement of LEDs at distances not typical for greenhouses gives a very uneven distribution of the flux. And the reflections from the walls of the room generate light losses with increasing distances. Even popular in Poland, I have seen at least one cultivation on a larger scale under this type. Evenly distributed in a large room, considerable distance from the plants, very nice measurement uniformity. Doesn't matter.

Oh, advertising is advertising. Commercial entry, in my country, MH panels in stores are definitely more expensive than at the manufacturer's, eg Popular, especially the cheapest TS series with a CRI of about 70 and LEDs with 16_18% ?? less efficient than the Samsung lm301. That's right, that's more or less what it looks like in their case?

New series with unevenly distributed LEDs on the bars has a very nice design. The ability to change the position in relation to each other. A piece of good engineering work, obtaining an even distribution on the surface in a box made of a panel with a relatively small size compared to the size of the dedicated growing room. oops .. now it sounds like I'm advertising: lol :. Penetration ?? what is penetration ?? When growing, one looks for the uniformity of the stream distribution, now in the era of smd diodes, there are no optics on the panels, in specific situations when you would need to focus the light on small growing tables with no shading, it would not be a bad idea. And what is not called depends on ...

It's just such a digressive trolling. Commercial solution one of many, more white here than in the case of other similar constructions. The design, including a heat sink with ribs across it, is rather typical. The next question is the price and real durability + the possibility of connecting a control system based on the measurement of the amount of natural light reaching the greenhouse at a given moment. Extending the day and achieving more or less constant DLI values. Important as hell for large commercial crops. In a small amateur greenhouse made up of just anything, with a dozen plants, it is rather not very important.

Regards. May the force be with you.

ps:

These toys above are cheap and have the efficiency of converting the current into a photon flux in excess of what sodium lamps can offer. At this price, even if they were to work for 4 seasons, they are probably worth attention. If I had 10 m2 greenhouses, I would probably be interested in them more closely. The angle by which the light is sent is smaller than 180 degrees, a bit by combining with the height of the suspension and the arrangement, you can focus most of the light where the plants are. Several powers to choose from. power supplays are rather cheesy but with a good power factor, they are completely waterproof. And the efficiency is not worse, but better than the best double-capped HPS lamps. For an amateur with small greenhouse just right. Thanks to the fact that you can fight light losses a bit, which at a wide beam angle will go beyond small greenhouses, you can gain a bit even compared to a more efficient source that sends a large part of the stream outside the area where there are plants. I do not sell or advertise anything. It just shows something that is interesting ... and potentially useful. In my country over 50N latitude, greenhouse late mid-ripening varieties after mid-flowering may require the addition of artificial light to reach their full potential. Short days and increased cloudiness. At half the value of the stream, as it would normally be in the growing room, the addition of this for 6 hours during the day .. it would give a really big effect .. Rather.

ps2:

they have a beam angle of 100 degrees.

all you need is a piece of paper and a pencil to more or less outline how to hang them over the plants so that as much of the available photon stream is on the area of ​​the plant, not outside very small greenhouse. With some reasonable evenness. An advantage over something that has an angle of 180 degrees, in special situations, of course, for a specific application and situation. Cost analysis of needs and opportunities in a given case.
Is it a device worth its price or not to judge by me.

The same is true for the dedicated MS alternative. Appropriate distribution in relation to the shape of a small greenhouse. Costs ?? let's have a look.

Mars Hydro SP 3000 Samsung LM301B Osram 300W LED Grow Light 1080 * 80 * 103mm US $ 352.79 per item.
Efficiency => 2.8μmol/j

V tac 200 W 160 lm / W_ 2.0_2.1 umol/j price in Poland US $ 122 under a different brand similar declaration around US $ 60

Efficiency difference: ~ 28%:[ based on declarations not measurements]

Cost per stream: Mars $ 0.42 per umol. V tac. $ 0.305 per umol: under a different brand: $ 0.15.

Different distribution of photons: with a small MS room across the cultivation area to minimize losses. Probably less even distribution of photons on floodlights. No power regulation, unfortunately. + higher energy consumption. In the case of commercial cultivation on a larger scale, it is not worth using them. A cost comparison somewhat inappropriate in nature.

Price at the manufacturer MS _ if to compare the cost at the manufacturer in the EU.448.79 mars_ when purchase 3 pieces. $ 0.53 for each umol. In the store, not directly from the manufacturer much more.

Cheaper Brand than V tac 28% of the price of a commercial dedicated panel. Higher energy consumption etc. It is worthwhile in "special" cases, if it is to work realistically 6 hours a day for 2 months a year, you could probably risk it.

Real light distribution after measurements not very dry determinable.

Combination typical for individuals from behind the former Iron Curtain. Do it with something that is not originally intended. What are the costs in the US of similar sources. ?? In Europe, and especially in Poland, the prices are slightly different. Taxes and very high profits of sellers often. In the case of these floodlights also, it was possible to get a similar 200W in the so-called promotion, similar declared efficiency for about $ 25.

With such a price difference, it looks completely different. It is always a question of price. The popularity of the TS series does not come out of nowhere. Now, with a change in the energy class of e27 sources on the market is significant drop in the prices of something that is intended for a chandelier and achieves similar efficiencies as TS. This also probably will not change. Maybe the owners of small boxes will be happy, because they will have very cheap high-efficiency light sources for micro grows.

These floodlights are actually very similar to the TS series based on diodes of CRI 70 with a minimal decorative addition of 660 nm SPD is very close to. The light distribution is different and the efficiency is similar to the weakest declaration in TS series => old ts600. Operating temperature is a little too high by nicking the diode into the diode of a very large number of smd2835. It looks so much better with the fan added. The 6400K versions are a nice alternative to the classic metal halide lamps which are still quite widely used for vegetative growth. Here, the efficiency advantage is great. Lots of spam in the thread ... such a habit carried over from somewhere else.

Completely irrelevant because virtually no one is on the forums nowadays. and nobody reads it.