HPA 400/30 SDThe Dr. Fischer HPA 400 30 SD 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 105 mm long HPA 400 30 SD has a factory warranty of 600 hours. optimized spectral output short exposure times short curing times customer approved