For L11 (lights underneath the spiral staircase), we will send you the specifications later. But we will want the LL to install these as well. Please advise the latest date we need to confirm the light fitting type. Note that for this lights we will have 2 nos per affected stair treads - refer to PP’s dwg 2.1.02a above. The overall placements would be repeated for 3/F - 4/F staircase, following 2/F - 3/F placement.