The color temperature of the lamps doesn't dictate how powerful the fixture is. You must also consider wattage and the overall efficiency of the fixture. Does it have individual reflectors, or is it a single reflector? What size tank is it over? How deep are you reaching with the light?
An exaggerated example would be:
If this 2 lamp fixture was individually reflected and You had it over 6" of water, I would say you have plenty of light. If you are lighting a 75 gallon tank, I would say you have low lighting.
I've had the sword, wisteria, a few crypt balansae, and some other crypt for a year. It's only been 3 weeks with pressurized Co2, and I recently bought more plants, that so far seem to be doing good. Thanks for the kind words