Why these numbers
SUNLU PETG Glow in the Dark starts from Bambu's PETG Basic reference; SUNLU's published specs are overlaid where available, and everything else stays at Bambu's calibrated default.
235–245 °C @ 50–100 mm/s; 245–250 °C at higher speeds; hardened nozzle
Treat these as a starting point — run a flow-test cube and Bambu's Flow Dynamics calibration after import for the last few percent.