Yes, they're about a push by the numbers. I've run 4 Ohms at 3.0 Volts (as low as my VV will go) and it still hits well IMO. Still too hot for PG in mild doses. I'd considered ordering fives to try even lower. That's 4.5 Watts, 5 Ohms on 3.7 is 5.5, 20% more power ..3 Watts, a fair drop but...