G13 t8 fluorescent bulb master tl d de luxe philipsadvantages very good colour reproduction 25 more light compared to the predecessor colour reproduction level 1a with high light yield can be replaced with all tl d fluorescent bulbs low light current reduction throughout the entire lifespancharacteristics high quality 900 light colours high stability of the light colours throughout the lifespanusage sales rooms flowers fashion department stores barbershop museums hospitals