SQP-6850A3SThe Superior Quartz SQP 6850A3S 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 1425 mm long SQP 6850A3S has a factory warranty of 600 hours. optimized spectral output short exposure times short curing times customer approved