N 2000 LThis is a TwinPack deal. You'll receive two (2) bulbs. The Original Cosmedico N 2000 L 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 171 mm long N 2000 L has a typical lifetime of 800 hours. optimized spectral output short exposure times short