Are the two ends of a T5 tube the same, or is there a difference? I ask because I have encountered a luminaire with a sticker on saying "lamp logo this end", and also on the Tridonic ballast data sheets they state:
Source: http://www.tridonic.com/com/en/download/data_sheets/PC_T5_PRO_lp_14-80W_en.pdf
Connection to the lamps of the “hot leads” must be kept as short as possible
(marked with *)
Source: http://www.tridonic.com/com/en/download/data_sheets/PC_T5_PRO_lp_14-80W_en.pdf