Testing a Mars Hydro 4x4 tent with a Mars FC6500 light

Doug Dawson

Well-Known Member
Good morning RIU. I have a new tent and light from Mars Hydro and have decided to do a little test of the gear prior to my grow. What we will be looking at is the Mars 4X4 tent and FC 6500 Bar light. This is a 650 Watt 8 bar light using Samsung 301B and Osram diodes. I will set the tent up, set up the light, test for light leaks, and take some par readings with my quantum par meter. So let’s get started. This is what we have to work with.

20210829_194045.jpg20210829_194118.jpg20210826_204259.jpg

Now the items were packed well. I am a bit confused by the info on the light. When looking at the Mars site it says it draws 680w yet when you look at Amazon or in the manual it says 650w. 650w is in line with the 6500 name it was given.
Mars site. “【High-Quality Efficient LEDs Chips】2688Pcs Best-Selling Samsung LM301B and Osram 660nm LEDs chips, consuming 680w power, High Efficiency Up to 2.8 µmol/J.”
Amazon site. " * MAXIMIZE YIELDS & CROP QUALITY: FC6500 LED growing light with 2688pcs Samsung LM301B & Osram 660nm Diodes, boast the market-leading efficiency 2.8 µmol/J, Max 2.5g yield per wattage with 30% higher Average PPFD,achieve 50% higher yield & quality compared with the old lights! Only consumes 650w,recommend 5x5ft for personal grow, perfect light for 4x4ft flowering."
Defiantly something odd there. Likely just a typo on their web site, perhaps @MarsHydrofactory can correct that. Will hook the light up to a Killawatt to see what the actual draw is and report later. The driver itself says 600w max.
The light came in 2 pieces, the main light and the driver. It took just under 45 min for me to unbox and set up both the tent and light. This was longer than it should have been but I had to hang the light twice. Here is what it looked like with the tent up and using the provided hangers.

20210829_200938.jpg

Now as you can see they provided 2 hangers, one for each end. They connect to the 2 corners and than to a ratchet cord. I did not like this setup at all. It is a bit unstable and the extra length from the v cables that attach to the light leave the light hanging way to low for me. It basically cuts off 1/3 of the tent. I took the light down and changed to 4 ratchet straps, 1 for each corner, allowing for a much better installation.

20210829_201515.jpg

As you can see from the pic the 4 ratchet straps raise the light much higher but still leave decent clearance so light is not too close to top of tent. To me this is a much better setup than the one provided.
So far the tent zippers glide well and the tent itself seems like good quality. It was also easy to set up. Tonight I will power up the light, test the power draw, check for light leaks, get some Par readings and report back. One thing to note is the light takes up the whole 4x4. A 5x5 might be a better size for this light but it defiantly does fit in a 4x4 so that is what I will be using. Stay tuned and I will post the results of the tests tonight.
 
Last edited:

Doug Dawson

Well-Known Member
I have 2 of those drivers and both put out 650 each.
I will hook a kilawatt to the light tonight when I take the par readings and show those numbers. Nice to know what actual users are getting so thanks for sharing. Do yours say 600w max like this one?
Mars Driver.JPG
 

Doug Dawson

Well-Known Member
Hey all, ok so got some numbers for you. So to start with let's look at the power draw, on full it is reading 642.5 watts, when turned down to it's lowest setting it is drawing 68.2 watts. Now I also took some par readings while light was set on full. At 24" the PPFD is 841.6, at 18" I am getting a PPDF of 951 and at 69.5" it is giving a PPFD of 387. I missed taking a pic of the last reading but you can take my word, nobody is likely going to have their lights at 69.5" from their plants.

20210830_192733.jpg20210830_192718.jpg
20210830_193138.jpg
20210830_193324.jpg
 

Doug Dawson

Well-Known Member
So after some inspection it looks like the tent seals nicely and I am not seeing any light leaks. So there you have it, the Mars 6500 and Mars tent seem like solid products. Come the 13th I shall start up a journal to see how this stuff performs but from what I see it should do well. That is unless I mess it up :) Have a great day all.
 
Top