... Temperature:2700/6400K Lifetime:more than 8000 4U lamp with high Luminous flux SH-D4U Saving energy 80%,have ... with fire-proof,high-temperature-proof and UV-proof, Using the basic tricolor phosphor, the lamp tube is good at color-rendering with high light effect ... . Better energy-saving capacity.Two color temperatures of 2,700K and 6,400K are available, suitable for ...