TR 12407 HThe Original Theimer TR 12407 H 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 1231 mm long TR 12407 H has a factory warranty of 600 hours. optimized spectral output short exposure times short curing times customer approved Length: 1231 mm