Fusion's T2 Fat Burner

I recently got my order in from the online store I buy my supplements from and because of all the money I spent (9 5lb tubs of protein powder) they sent me some free T2 fat burners. Now I’m not planning on taking these anytime soon as I am currently bulking hard, but I just wanted to know if anyone has used these, and how/when I should take them, when and if I choose too. Thanks.