Average light per hour:
Fates: 22-25/hr
ST: 24/hr
Primals (During Bonus): 40/hr

Feeble: 1 Light (CONFIRMED)
Gentle: 2 Light (CONFIRMED)
Bright: 4 Light (CONFIRMED)
Brilliant: 6 Light (CONFIRMED)
Blinding: 12 Light (CONFIRMED)
Newborn Star: 16 Light (CONFIRMED)

Tiers:

'No Activity': 0 - 199 (CONFIRMED)
'Indisctinct Activity': 200-399 (CONFIRMED)
'Faint Activity': 400-599 (CONFIRMED)
'Slight Activity': 600-799 (CONFIRMED)
'Modest Activity': 800-999 (CONFIRMED)
'Distinct Activity': 1000-1199
'Robust Activity': 1200-1399
'Vigorous Activity': 1400-1599
'Intense Activity': 1600-1799
'Extreme Activity': 1800-1999
'Bursting Activity': 2000+ (Complete)

Nexus Tracker

Just hit indistinct.

Confirmed faint activity at 400.

Grats on your nexus Thenit!