... dust proof, moisture proof up to IP50. High quality, fast starting and energy saving. T5 Water Proof Batten Fixture1. Water proof, dust proof, moisture ... Strong sealability, good transmission of light and soft lighting.5. High quality, fast starting and energy saving.Applications: Parking lot, factory, ... and outdoor and other special places.DoubleSingle 2011 popular T5 Water Proof Batten Fixture