For a compact economical long lasting lighting solution that saves energy the 2 Pin PLC Compact Fluorescent lamp continues to be a great option when it comes to replacing your failed lamp. Compared to the incandescent light source this super lamp saves up to 60% in energy usage and last eight times longer, at 8,000 hours! It must be noted that the PLC 2 pi is a specialist lamp with a specific cap that can only be fitted into an appropriate lamp holder.