... 2°C, thus ensuring product life, the lowest light decay6. 603# aluminum housing,surface with steel processing ... 10 times of the current led grow lights, light efficiency more better and energy saving, more ... for plant growth.9. Waterproof Connector to the light body and led driver, easy to install and ... harmful heavy mercury15. Four type in different size, 11W,22W,33W, 44W and customized.Note!1. Please ...