HPA 2020S-FXThe Philips HPA 2020S FX compatible* lamp, is a high quality bulb made with the finest raw materials. It is designed to provide high actinic output and long service life. The optimized spectral output guarantees rapid curing and short exposure times with the industries best dot to dot quality. The 185 mm long HPA 2020S FX has a factory warranty of 600 hours. optimized spectral output short exposure times short curing times customer approved Length: