I'd try 3/4 first. Full power is less efficient and wicked stong!
 
I looked at specs and if i read right the Cob is rated at 137w, driver is 100w. Is that right?
 
If that's right then i think full power with other cobs also pulling would be close to 75% power. That would be most efficient by cree specs
 
the true power of Mars COB is 110w
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Hello All AFN members,
Thanks for all your concerning and long time waiting for our new lights!:woohoo:
This moment, I feel very honored to announce that Mars Hydro SP series are released!:cooldance:
Their names are SP-150 & SP-200.:woohoo1:
Let's have a look at below video to get more information.:thanks:

Currently, the pre-orders are only opened to US & CA market and the delivery will start in one month.:yay:
As a support to all of you, we will offer a 10% discount for both lights as a support.
You can get your discount on www.mars-hydro.com with the coupon code : autoflower:welcome:
Click here to find more information: Mars SP
 
And what we need for testers? I will also open another thread for this.
We will choose one growers to sponser his grow: Either 2x4 tent with one SP 200 or one 3x3 tent with 2pcs SP 150; Below is what we need:
- time: 12~27th, Dec.
- Tell us why would we choose you? What are you capable of?
- Testers needs to write an grow journal with the sponsored light, and keep others update how it works out. At least 1~2 times each week.
- We will send some random gifts to others who don't get the light.
TIM图片20181212094133.jpg
 
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