Aiming　at　the　traditional　communication　RF　amplifiers　problems　such　as　high　cost　and　low　efficiency,　a　single-stage　AC-DC　high　gain　step-down　LED　driver　and　its　hybrid　visible　light　communication　(VLC)　modulation　control　strategy　are　proposed　to　meet　low-voltage　output　and　VLC　of　LED　applications.　The　low-ripple　step-down　Cuk　combined　switched　capacitor　(SC)　and　synchronous　rectification　(SR)　Buck　are　integrated　into　a　single-stage　driver.　The　hybrid　VLC　control　strategy　is　based　on　the　theory　of　binary　phase　shift　keying　(BPSK),　the　LED　lighting　level　is　controlled　by　the　average　output　current,　and　the　data　communication　modulation　is　realized　by　the　phase　change　of　the　output　current　ripple.　The　proposed　circuit　and　hybrid　control　strategy　are　analyzed　in　detail,　and　the　key　parameters　of　the　proposed　circuit　are　designed.　Finally,　the　computer　simulation　is　carried　out,　and　an　input　of　185~265VRMS　and　constant　current　output　of　1A/25W　experimental　prototype　is　set　up.　The　simulation　and　experimental　results　have　been　obtained　to　show　that　the　circuit　can　realize　high　gain　step-down,　the　functions　of　hybrid　LED　lighting　control　and　VLC　modulation,　which　verifies　the　effectiveness　of　the　proposed　driver　and　hybrid　VLC　modulation　control　strategy.　©2023　Chin.Soc.for　Elec.Eng.