1. Industrial grade waterproof treatment, efficient waterproof, effective high temperature resistance. 2. 21+21 high-brightness COB lamp beads, high brightness, low heat generation and long service life. 3. Wiring method: the black wire is connected to the negative pole, and the red wire is connected to the width light and the ground 4. Material: COB lamp beads, aluminum alloy bottom plate 5. Number of lamp beads: 21+21 (white light) 6. Dimensions: 109 x 65 x 8mm