Joined: Jan 2009
Posts: 44,171
Likes: 6,394
From: New York, NY, and High Falls, NY, USA
Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem
I agree that you're a good candidate for sticking with dynamo power.
Tail lights need a lot less power than headlights, so I think battery powered tail lights are fine, and there are many to choose from. Batteries in my tail lights last for months.
But have at least one dynamo powered headlight. They are very reliable, and I only see high quality dynamo powered headlights on the market.