The HiLumz 22" linear strip retrofit kit for T8 and T12 fluorescent tube replacement is a powerhouse. Over 180 lumens per watt of light output at 100% efficiency at the LED strip level. What does this mean? This is the method used by many LED companies to demonstrate the raw power of an LED module. There is no loss taken into account for power loss due to the driver nor light loss due to a lens or diffuser panel.