A lighting system comprising: a first lightguide comprising: two first major surfaces (281, 282); a first apex edge formed between the two first major surfaces (281, 282); and a first lower edge formed between the two first major surfaces (281, 282); one or more first LEDs disposed along the first apex edge to couple light into the first lightguide through the first apex edge; a second lightguide comprising: two second major surfaces (281, 282); a second apex edge formed between the two second major surfaces (281, 282); and a second lower edge formed between the two second major surfaces (281, 282); one or more second LEDs disposed along the second apex edge to couple light into the second lightguide through the second apex edge; and a frame; wherein the first lightguide and the second lightguide are angled relative to one another to provide an apex at the first apex edge and the second apex edge, the frame configured for recessed installation in a ceiling; characterized in that the frame comprises a first recess that receives and supports the first lower edge of the first light guide and comprises a second recess that receives and supports the second lower edge of the second light guide; and in that at least one first spring disposed in the first recess and in contact with the first lower edge of the first lightguide; and at least one second spring disposed in the second recess and in contact with the second lower edge of the second lightguide. a first lightguide comprising: two first major surfaces (281, 282); a first apex edge formed between the two first major surfaces (281, 282); and a first lower edge formed between the two first major surfaces (281, 282); two first major surfaces (281, 282); a first apex edge formed between the two first major surfaces (281, 282); and a first lower edge formed between the two first major surfaces (281, 282); one or more first LEDs disposed along the first apex edge to couple light into the first lightguide through the first apex edge; a second lightguide comprising: two second major surfaces (281, 282); a second apex edge formed between the two second major surfaces (281, 282); and a second lower edge formed between the two second major surfaces (281, 282); two second major surfaces (281, 282); a second apex edge formed between the two second major surfaces (281, 282); and a second lower edge formed between the two second major surfaces (281, 282); one or more second LEDs disposed along the second apex edge to couple light into the second lightguide through the second apex edge; and a frame; wherein the first lightguide and the second lightguide are angled relative to one another to provide an apex at the first apex edge and the second apex edge, the frame configured for recessed installation in a ceiling; characterized in that the frame comprises a first recess that receives and supports the first lower edge of the first light guide and comprises a second recess that receives and supports the second lower edge of the second light guide; and in that at least one first spring disposed in the first recess and in contact with the first lower edge of the first lightguide; and at least one second spring disposed in the second recess and in contact with the second lower edge of the second lightguide.