... ),146(6m)Carton weight8.5KG(1pc/ctn)Details description: 1) Use high efficient 1w LED as the light source, Based on ... : built-in power supply, no need ballast, reflector, it can use independently.4) Unique heat dissipation device: thermostatically controlled fans to ... , farm, flower exhibition, garden, bonsai etc 300W(288*1w) indoor warehouse lighting/grow panel lighting with 3 years warranty