Well for a 33gl I would say that you have more than enough light, as I keep many colorful green and purple SPS corals under half the amount of light in the same size tank.
SPS are very sensitive to water parameter swings, such as salinity and temperature. If your just starting out with SPS I would also recommend a Digitata or Montipora coral until water parameters are stable, then you may want to try an Acropora species in the future. Also doing some more reading or research on SPS in general should help too.
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