I have to say you're the exception not the rule. That's not a bad thing but it's not the norm by far. What unit are you running, how many and what optics?
I guess if you used optics, used enough LED, and had shallow tank you could be alright with 1W LED but in all honesty running 1W LED at a full 1W is going to greatly reduce their lifespan and you're still only running with 1W. I've got a Moon Strip (sunrise, sunset, moonphase, and LIGHTNING) that is 1W running at 100% and I can assure you it's not up to the task of any real coral growth.
YMMV