Lightrings ranges.

Actual unlock number: 471
lightrings1.gif: [371, 395] and [547, 571]
lightrings2.gif: [396, 420] and [522, 546]
lightrings3.gif: [421, 445] and [497, 521]
lightrings4.gif: [446, 460] and [482, 496]
lightrings5.gif: [461, 465] and [477, 481]
lightrings6.gif: [466, 476]

Relative to the answer, that's:
lightrings1.gif: [-100, -76] and [76, 100]
lightrings2.gif: [-75, -51] and [51, 75]
lightrings3.gif: [-50, -26] and [26, 50]
lightrings4.gif: [-25, -11] and [11, 25]
lightrings5.gif: [-10, -6] and [6, 10]
lightrings6.gif: [-5, 5]