I recently bought a Ryaco and a Nestling front light via Amazon. They are the same, but the Arya o had a nicer rear light included. They claim to be 1200 likens, but 500 would be a better guess. That’s usually enough though And both have batteries that give a useful duration from full.
Look at different listings for price.- looks like I paid 12.99 for the Nestling and 16.99 for the Ryaco.