way more efficient than cf , i like them a lot, good color temp a rough comparison on light output is a 55 watt incandescent , 13 watt cf and 5 watt led. i changed all of my bulbs in my 5th wheel and my truck to led except for the headlights and fog lights i changed to hid , it cost about $1,500 brighter lights and can dry dock for ever . i thought i would try to do the same to the house, bought about $300 worth to experiment with it looks like it would take about $9,000 to convert i will wait until the price drops and convert a few at a time starting with the most used. also on the trailer i had a 10% failure rate during the first 40 hours of operation then no more failures. half of the led,s came from superbright led's and had 2 failures and they replaced fast and courteous the led's we got from leds,com had 16 failures some out of the box and they still have not responded i will give them another month and send a complaint to better business bureau.