I just change CFL bulbs for LED ones as they fail, which is what I suspect most people do. That should be a straightforward decrease in power use. 6W/bulb is l

I just change CFL bulbs for LED ones as they fail, which is what I suspect most people do. That should be a straightforward decrease in power use. 6W/bulb is less than ~9-15W/bulb, reduced from the incandescent 60-100W/bulb (but I haven't installed an incandescent bulb for 15 years).