Buy a used one if you must, then when you want to change it, which you will soon enough... you will get back what you paid!
Some unsuspecting newbie mug will buy the led from you, grow one grow, get pissed off with it's performance and loud fans
Don't believe everything you read on the internet man. Smokesara spams the shit out of every led thread going, on all forums
Get white cobs dude, save messing around with shit for for 6-12 months, before you educate yourself on cobs and want to change to cob anyway.
If you ain't got a lot of money, it will be ok for the meantime... Just is pretty average 'at best' for a grow light.
Notice there are always 2nd hand mars II leds on fleabay... That says it all. The leds you don't see there are good, nobody wants to sell them
I have done grows in the past with crap leds, grew some weed, reinvested in good leds. I'm buying some cobs in the the morning. Tried today but have to wait til the payment lady is in...