... Temperature:2700/6400K Lifetime:more than 8000 4U lamp with high Luminous flux SH-D4U Saving energy 80%,have more than 8 ... ,000hrs life time,High luminous flux,high perfomance, stable light beam, no flashing, protect your eyes ... phosphor, the lamp tube is good at color-rendering with high light effect. Better energy-saving capacity.Two color temperatures of 2 ...