These 5 watt bulbs replaced my 40 watt Kichler light bulbs. They run much cooler and will require 1/8th the amount of electricity. We've been looking for these bulbs since we switched all of our house lighting to LED last year. We have noticed a cheaper electrial bill once we switched to LED.
It's brand new, so it's only been a month, but we love this new tankless system. The water temperature is sustained and accurate. No adjusting is needed once it's set to your desired temperature.