An ultralight experimental aircraft pilot reported they lost control of the aircraft while landing due to wind gusts resulting in a bounced landing and prop strike.

Narrative

Upon visual approach to Runway XX winds were 11 gusting 17 kts. Per procedure I added and maintained 5 kts and flew the approach at 65 kts. Speed started to climb in the approach So I Added Full Flaps about 200' above the runway. There are three flaps setting in the aircraft; the full flaps are 55 degrees. speed was reduced back to the 5 kts. Touch down was normal and a smooth landing; for about 5 seconds. then the aircraft abruptly lifted off the runway about 2' as a wind gust hit it. The wind stopped and the plane dropped to the runway hard and bounced. Again the wind stopped and they plane in hit the runway again causing a prop strike and the prop shattered. Wood prop with fiber glass.I maintained control of the aircraft best I could and managed to get to the side of the runway without hitting an taxi lights or signs. I performed the emergency procedures of shutting off the fuel; shutting down the master switches; Inspected the plane for smoke; (none was present) then exited the aircraft. Tower asked if I needed Assistance and I relied 'Affirmative'. I let them know I did not need medical assistance. Just assistance with the plane.Upon inspection of the plane and talking with Tower Personnel who were watching the landing; They informed me all looked good when I touched down; but the plane lifted and when it came down the rear copilot landing gear came off the plane as well as the nose wheel. then the prop strike occurred. There were no injuries; and no damage to the airport facilities.