I have photofact #352 #16 that covers Halolight models 21C501 series 21C502, 21C605 21C607, 21T201 @21T206 21T301 21T303,24C603 24T301 models. Are you sure that your is a 21T103 isn't a 21T301? I have that sams and could e-mail you copy's of it. Attached are a couple of scans. Does the chassis look like yours? Let me know.
[email protected] If so I can scan the rest of the folder.