Hi !!!
Need help please…
I use the same Mhydro since few days…
In growing,what is the good distance between the top,plants and the lamp ?
And which power please ???
30…50…75 % ?!
Thanks !!!
For seedlings I’d use min setting at 36 inches and gradually increase light intensity when veg starts. During veg you can go to 75% power at 24-28 inches @Azrael
Is it like this…75%…24…28 inches? I can go without problem…?!
Thanks a lot !!!
Yes that’s fine, just make sure you increase the dimmer on the light gradually. My light is currently 75% and 28 inches away with no problems! @Azrael
Super…thank you !!
Just to know…
To increase the dimmer…gradually…?
(Actually,im on 50%…)
Like…60% few days…? 70% few days…?
Until 75% …for the plants to adapt slowly until the 75%?!
Thanks !!!
If you’re at 50% dimmer now, you can increase it to 60% tomorrow then to 75% the day after 
@Azrael
Ok,i will do it like that…!!!
My plants doesnt grow up too much now and i didnt know how to use the Mhydro to do something good…
Its why i needed the best advices of someone how have it ( mhydro tsw2000,300w)and know how to use it good !!!
So,i hope it will be better…!!
So,thanks a lot Graywave !!!
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I ran a TSW2000 for a while, but like any other light you need a meter of some sort to measure light intensity to really get it spot on. Download a decent app, dial in your DLI and find out what works for your setup . . . anything else is guesswork
Too many variables to just say you have a TSW2000, run it X height and X% power for each stage. That may work out, but not every lamp will have the same output on the same dimmer setting, not every lamp has the same hours on it (my 3 year old TSW2000 likely will not match yours), all tents/reflective materials are not equal, etc.
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That’s the best answer what @frogyrogy said above me 
@Azrael
Complicated all of that…
But Thanks…
I have to adapt it and do it by myself…
I know…
So,which decent app can i use ?!
I just need some advices from people who know and are be able to help…
Personally, I use Photone . . . I had to pay like $5-6 to unlock correct light source but it does have a free version that you can check out.
Honestly, nothing difficult or complicated about it. Download app, choose light type and cycle for DLI . . . hold phone at canopy level under light and turn dimmer up or down to get the DLI you’re looking for.