These succulents are Graptopetalum / Sedum hybrids. They require lots of sun to maintain compact growth.
Summer growers. Graptosedum require gritty porous soil with excellent draiange. Water regularly over the summer months letting the soil dry out between waterings. Minimal water is required over winter. Fertlise once during the growing season with a balanced fertiliser diluted to ¼ strength. All do best in sun or part sun.