LuAGCe3+　is　an　efficient　and　stable　commercial　green　phosphor-converted　material.　Two　series　of　Lu3Al5-xMxO12Ce3+　transparent　ceramicsTCsdoped　with　Ga3+/Sc3+　ions　were　fabricated　by　vacuum　sintering.　The　effects　of　doping　ions　and　their　concentration　on　crystal　structurefluorescence　propertiesand　thermal　stability　were　investigated.　Both　Ga3+　and　Sc3+　doped　LuAGCe3+　samples　exhibit　a　blue-shift　under　450　nm　blue　light　excitation.　SignificantlyGa3+　doped　samples　have　more　effective　spectral　modulationand　the　emission　spectrum　shifts　from　536　nm　to　506　nm　when　Ga3+　concentration　increases　from　0%　to　20%.　Meanwhileit　is　found　from　temperature-dependence　spectrum　and　quantum　yield　characterization　that　Ga3+　doped　ions　have　less　impact　on　thermal　stability　of　LuAGCe3+　ceramics.　By　encapsulating　the　ceramic　samples　on　3　W　blue　LED　chipsgreen　light　sources　with　various　spectra　were　obtained.　Among　themGa3+　doped　LuAGCe3+　samples　show　better　color　tunability　and　maintain　higher　light　efficiency.　In　summaryGa3+　doped　LuAG　Ce3+　ceramic　is　a　promising　green　phosphor-converted　material.　©　2022　Chines　Academy　of　Sciences.　All　rights　reserved.