1. Replaceable Power Supply- Patent 2. Rotating End cap- Easy to install 3. CE, RoHs and FCC 4. 3 years warranty L03F model with replaceable power supply is a unique ERVAN patented feature.In case the tube failed, only to replace the power supply, no need to change the whole tube, saving money. Rotating end caps allow to optimize the lighting direction, meeting your different angle demands. ...