QL-H288-L31The QLI Lighting QL H288 L31 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 2500 mm long QL H288 L31 has a factory warranty of 600 hours. optimized spectral output short exposure times short curing times customer approved