Talk:Lee Sin/@comment-108.74.28.222-20120422172855/@comment-24.251.239.242-20120424005418

The ability details page has a more complete breakdown. After using the first portion of one of his basic abilities, you have 3 seconds to use the second portion. If you are spacing his abilities for max dps instead of burst (like when fighting a large jungle camp) his natural energy regen will cover the costs that Flurry doesn't and keep you constantly near full. See the Energy page if you want more info.