... .Certificate:CE,ROHs 3.T40 Metal Halide Lamps for aquarium 1.Excellent luminous flux maintaining rate and long lifespan ... of maintenance2.color temperature 3000k,4000k,6000k,10000k,14000k for selection3.Nice color rendering creates pleasant atmosphere with ... 6000hours8.sutable for flashlight and streetlight,outdoor floodlight9.Excellent color rendering,Ra 65-9510.T40 Metal Halide Lamps for aquarium