There's no direct conversion between a 10ml bottle and cigarettes. It depends on factors like:
Nicotine strength: Higher strength (mg/ml) means fewer puffs for nicotine satisfaction.
Vaping habits: More puffs per day uses more liquid.
Based on your light vaping (1hr/day), a 10ml bottle could last:
A few days to a week (higher nicotine)
Up to 2 weeks (lower nicotine)
Your 2ml carto lasting 2 days suggests a 10ml bottle might refill it 3-5 times.
Remember, this is just an estimate. Experiment to find your sweet spot.