Mars-Hydro LED Grow Light Discussion

Welcome back! I was worried when this thread was closed to further replies.

Back when I received the TSW-2000, I promised to grow a plant I thought worthy of the contests here. I pulled the plant from the tent, and took this for photo of the month...


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Osprey
 
Hey Sara Welcome Back! Girls are doing great under the Mars, harvest in a week or so!



 
Just bought a new SP150 to fill this little void.
2020-01-31-08-57-56.jpg


I'm sure the ladies are gonna thank me for it!
:thumb:

Glad to hear you are well Sara! Be safe, sending positive vibes...
:passitleft:
That's going to add some good light to your area, You are getting things set up in that temple, Air , Water, and lighting. Your grow temple will be really nice when you have it all done.
:party:
 
Plant of the Month Entry - February 2020:

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We Want to Grow Up to be Just Like You
(Little Do They Know What's in Store)

Granddaddy Purple at Day 145 after germination, and Day 61 of Flower. She is 54" / 135cm wide and 42" / 105cm tall (from the soil), and is full size for an outdoor plant! She was grown this size to show what the Mars Hydro TS series of lights are capable of. She vegged under the TSL-2000, and flowered under the TSW-2000 in a Mars Hydro 3' X 3' grow tent. She was grown in 10 gal coco/perlite using drain-to-waste hydroponics with Mega Crop as her nutrients.
 
It's just for power consumption that's all, I'm running 2 SP 250's which work out to be 490w but I'm getting 2 Of the TSL 2000's too which are both 600w combined so need to adjust those down to 500w so I stay within 1kw per hour.
 
@SmokeSara
With reference to this discussion:

I take it that you now supply adequately long leads on the TS series to place the power supplies outside the tent. My TSL 2000 has leads that are a bit short even for the installation with the power supplies mounted on the light. The leads are short enough that they can place undue stress on the plugs and sockets - the plug housing are bending upwards because of the somewhat short leads. After the many daily thermal cycles of 50C++ this could potentially fail sometime in the future. Ref. the pictures below.

Now, like some people I'd like to place the PSUs outside the tent, but that either requires extension leads which are hard to get in adequate quality, or make my own extension. For the latter option I can't find any 2.5mm DC plugs with a rating I dare use for each of the 150 watts halves of the TSL 2000.

My plants and me like the TSL 2000 a lot :yummy: - it's a great light, but the situation with the DC leads isn't ideal. Since you now do supply long enough leads (two TS 1000 I recently bought had the long leads, and so did the OP's TSL 2000 in the referenced thread), I'm wondering if you will make those available for existing customers. Personally I'd be happy to replace the existing leads, opening the PSUs and swapping them out for longer ones (well within my professional capability), but others may want actual extension leads that are professionally made and rated for the power in use.

The somewhat short leads:

TSL_2000_lead_length.JPG


The short leads place mechanical stress on the plug and socket - an arrangement like this can be failure prone, particularly with the thermal cycles the lights undergo:

TSL_2000_plug_stress.JPG
 
When I did this, I found that I had an induced voltage of 15 volts ac from the reflector to ground. I could feel it with my fingertips touching the reflector. I ran a ground wire from the reflector to the drivers and it disappeared.
I just unplugged and measured the TSL 2000 grounding. The power supply housings are grounded, and the reflector gets grounded when the PSUs are screwed onto it (the PSU housings have a layer of lacquer or something, so you have to pierce that with your probes). The DC supply is floating, as it should be - there's more than 2MOhm between it and ground (I didn't bother to try for higher resistances - 2M is enough). So if you measure AC voltage between ground and the reflector with the PSUs removed, you'd normally be measuring a floating potential and what voltage you see is induced noise - there's probably no measurable current available, so not dangerous. BTW, I don't think I can feel any current with a 15V AC potential on my skin - if you can feel a current by touching the reflector there may be something not quite right...

Running a ground wire like you did is a Good Idea™ as it will remove the noise and add safety.

BTW, I just saw Old Salts instructions - great stuff! I look forward to his measurements.
 
I just unplugged and measured the TSL 2000 grounding. The power supply housings are grounded, and the reflector gets grounded when the PSUs are screwed onto it (the PSU housings have a layer of lacquer or something, so you have to pierce that with your probes). The DC supply is floating, as it should be - there's more than 2MOhm between it and ground (I didn't bother to try for higher resistances - 2M is enough). So if you measure AC voltage between ground and the reflector with the PSUs removed, you'd normally be measuring a floating potential and what voltage you see is induced noise - there's probably no measurable current available, so not dangerous. BTW, I don't think I can feel any current with a 15V AC potential on my skin - if you can feel a current by touching the reflector there may be something not quite right...

Running a ground wire like you did is a Good Idea™ as it will remove the noise and add safety.

BTW, I just saw Old Salts instructions - great stuff! I look forward to his measurements.
My comments were about after removing the power supplies. I had also measured the amperage at the time, and there was none. But I can definitely feel that kind of stray voltage with my fingertips, or perhaps the magnetic induction thats creating it, I don't really know.
Those PSU's are hot, I have mine in an adjacent insulated cold room that is exposed to the outside on two sides. It was
- 35 C ! here for days and that room stayed above freezing at +8 C!
 
Thank you very much for your warm welcome. :hugs:As the virus is spread through saliva droplets, our company considers the safety of our employees, so we decided to work at home from February 3. We will reply to the email as usual and deal with the order as before. Except for the order delivered from China, we will deal with it within 24 hours.:love: As for the orders that need to be shipped from China, we will arrange the shipment from February 10. :Namaste:I have more time to spend at 420magazine from tomorrow:circle-of-love:
 
@SmokeSara Is there a light dimmer I can plug in to my SP lights instead of having to take the ballast of and also I don't want to void any warranties.
I don't suggest you add a dimmer. You can remove the power of sp250, so that you can turn on the light directly in the power supply. I suggest you add a wattmeter, so that you can adjust to the wattage you want more accurately.;)
 
@SmokeSara
With reference to this discussion:

I take it that you now supply adequately long leads on the TS series to place the power supplies outside the tent. My TSL 2000 has leads that are a bit short even for the installation with the power supplies mounted on the light. The leads are short enough that they can place undue stress on the plugs and sockets - the plug housing are bending upwards because of the somewhat short leads. After the many daily thermal cycles of 50C++ this could potentially fail sometime in the future. Ref. the pictures below.

Now, like some people I'd like to place the PSUs outside the tent, but that either requires extension leads which are hard to get in adequate quality, or make my own extension. For the latter option I can't find any 2.5mm DC plugs with a rating I dare use for each of the 150 watts halves of the TSL 2000.

My plants and me like the TSL 2000 a lot :yummy: - it's a great light, but the situation with the DC leads isn't ideal. Since you now do supply long enough leads (two TS 1000 I recently bought had the long leads, and so did the OP's TSL 2000 in the referenced thread), I'm wondering if you will make those available for existing customers. Personally I'd be happy to replace the existing leads, opening the PSUs and swapping them out for longer ones (well within my professional capability), but others may want actual extension leads that are professionally made and rated for the power in use.

The somewhat short leads:

TSL_2000_lead_length.JPG


The short leads place mechanical stress on the plug and socket - an arrangement like this can be failure prone, particularly with the thermal cycles the lights undergo:

TSL_2000_plug_stress.JPG
At present, both our ts and SP have added 2m extension power cord. If you want to add additional power cord to your ts, you can order it from our factory in China, or you can DIY yourself. @Old Salt has posted the parameters of the extension cable before. You can refer to it, here is link: Mars-Hydro TSL-2000: Unboxing & Installation
 
Thank you very much for your warm welcome. :hugs:As the virus is spread through saliva droplets, our company considers the safety of our employees, so we decided to work at home from February 3. We will reply to the email as usual and deal with the order as before. Except for the order delivered from China, we will deal with it within 24 hours.:love: As for the orders that need to be shipped from China, we will arrange the shipment from February 10. :Namaste:I have more time to spend at 420magazine from tomorrow:circle-of-love:

It's good to hear that people and their employers are doing what they can to prevent this disease from spreading, I hope that you, and those you care for stay safe.
 
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