Welcome to ECF, Bobod! As you will see, opinions on this vary quite a lot! I typically vape my Subtank 1.2 OCC at 16 watts - sometimes even lower. I don't particularly like a really warm vape, and higher wattage just doesn't do much for me. I'd suggest you start at 14 watts and gradually work your way up until you find the sweet spot for your juice. Oh - and what's good with one juice may not be so good with another. Best of luck to you!