Up to date LED lights guide

[OttawaGreen]

As an example $1000 worth of Mars 2 gets you two lights that draw 780w each so that is 1560w or 1.56 watts per dollar.
$1000 worth of advanced DS XML 350 gets you one light that draws 330w for 0.33 wp$. Which do you think Produces more 1560w or 330w?- it's a no brainer. The advanced ds xml costs 4.7 TIMES AS MUCH FOR SAME WATTS. Not sure why this has to get argued so often, it seems extremely clear. Get as many Mars 2 or eshine 3G diamond series as you can afford / fit in your space

 

[OttawaGreen]

Yeah at your $200 an ounce price one Mars 2 with real draw of 760w producing 24 oz (or more with practice) is $4800 worth on first grow from a $500 light. So it pays for itself 10x over if you get the bigger ones...

 

[DukeO]

At those prices. Someone could buy new lights each grow and still make a nice living! LoL

The crazy thing is. That it is true....

Yeah at your $200 an ounce price one Mars 2 with real draw of 760w producing 24 oz (or more with practice) is $4800 worth on first grow from a $500 light. So it pays for itself 10x over if you get the bigger ones...

 

[OttawaGreen]

Silly people saying led is too expensive to replace hps is like a farmer saying he will stick with horses to Work the farm as Lamborghini SUVs are too expensive to pull the load of hay... Just get an F-150!

 

[DukeO]

Aahahhahaha!!!!

Silly people saying led is too expensive to replace hps is like a farmer saying he will stick with horses to Work the farm as Lamborghini SUVs are too expensive to pull the load of hay... Just get an F-150!

 

[tucker99]

$200 an OZ? I wish I could get it for $200, I'm paying $400!! That's why I started growing my own. I'm in a 36" X 18" X 72" cabinet with a 96X3 Mars reflector. I just germinated a seed 10-days ago and it just started making it's 3rd node this morning. I'm hydro and my light is 24" above the plant. How close do you guys run your LED's at early veg? Thanks

 

[Amandisa]

It would be fine.
Mars 1200 draws about 600 watts, that's 37.5 watt per square foot. That's good.

Thanks mate! I couldn't find the heat output on the Mars 1200W, do you know the heat output?

 

[Richard Richardson]

Thanks mate! I couldn't find the heat output on the Mars 1200W, do you know the heat output?

They do not put out much heat, about twice as much as a Playstation3

 

[OttawaGreen]

I do like 12-18" or so for veg but different light and on a mover.

In bloom I am at about 2" above for two 260w lights with 90 degree Lenses with a mover

 

[OttawaGreen]

I love your unit of measure for heat haha. 2PS worth of heat.
I have never seen a "heat output" for any light before.
I would guess my two 400w hps lights put out at least a 14PS

 

[Richard Richardson]

That's due to the way that each lamp produces light. An LED lamp does not emit much thermal radiation as light. Its power is only used to push electrons around, which is pretty much what a Playstation does.

Electromagnetic radiation is emitted whenever electrons are taken to a higher energy level before dropping in some way. The sudden drop in energy is compensated by the release of photons.

In HPS lamps, this is achieved by using an electric arc in an ionized atmosphere of vaporized sodium and mercury, enclosed in translucent alumina. It is a thermal conversion of electrical energy into light energy, whereas the light from LEDs is produced individually, by electrons losing energy when they fall into a "gap" in a semiconductor.

Visible LEDs use semiconducting material with predetermined band gaps of a certain size that electrons are pushed across to produce photons in a particular wavelength. This type of light is called electroluminescence and is a non-thermal conversion of electrical energy into light energy.

The heat from any lamp is generated by the electrical energy used for photon production, plus the photon production process itself. In this regard, all lights and Playstations of a comparable wattage will produce the same amount of heat from the actual equipment, however, HPS lamps emit much more radiant heat because the energy is used to make an electric arc; which is hot, like the sun.

 

[OttawaGreen]

Good description thanks for posting that. Now hopefully we have helped more people save money buy using low cost powerful leds instead of hps/hid/mh

 

[BRUCEWEED]

Thanks mate! I couldn't find the heat output on the Mars 1200W, do you know the heat output?

My Mars II 1600 hits 120F tested with my laser thermometer

 

[BRUCEWEED]

Oh yeah I'm making 2 fixtures 1 Cree CXB3590 and 1 Vero 29 and gonna do a side by side by side with my 2 Mars II 1600's

 

[OttawaGreen]

Not sure the laser thermometer is really helpful that is temperature not quantity of heat. If I were to put a stick of burning incense in my room it would show 400C with laser thermometer - would it heat my grow cabinet? No.

 

[BRUCEWEED]

Not sure the laser thermometer is really helpful that is temperature not quantity of heat. If I were to put a stick of burning incense in my room it would show 400C with laser thermometer - would it heat my grow cabinet? No.

I pointed it directly to the lights source which generates the heat and if you are running them in a tent that plays into factor. Heat is heat and an incense is tiny compared to the panel the has 324 5 watt diodes. I bet you if you had 324 incense burning it would heat up your room. I have 2 Mars 1600 and I have to keep my tent open while the lights are on.

 

[BRUCEWEED]

Oh yeah I'm making 2 fixtures 1 Cree CXB3590 and 1 Vero 29 and gonna do a side by side by side with my 2 Mars II 1600's

 

[Amandisa]

They do not put out much heat, about twice as much as a Playstation3

Haha, thanks mate!

My Mars II 1600 hits 120F tested with my laser thermometer

Thanks! That would be around 49-50 degrees Celsius, which is pretty good I guess!