... Long lifetime, energy-saving,reused3. convenient to replacement4. Optional colors5. waterproof,IP44 OR IP65. can be used indoor or ourdoor.6 ... enduringly on. Can work 15-20days with timer control(when switch at Timer, then timer control 8hrs on, 16hrs off autoly, pls ... "OFF", the middle switch "TIMER" the right switch "Enduringly ON"Timer Control: when switch at middle "TIMER", then it work itself, 6hrs ...