Laser Flashlamp with Xenon 600 Torr fill, 7.15mm OD x 211mm LG. Envelope material: special grade, high UV absorbance cerium doped fused quartz, 5.95mm ID, 7.15mm OD. 12 awg, PTFE insulated leadwires. Can last over 1 million pulses (up to 2500W). Made in the USA.