Coherent Laser Head type D88i OEM Head 48V. Part No.: 0175-216-50 rev DA. with Diamond Shutter. Part No.: 0170-111-01. and D88i CRTD Tube Refurb. Part No.: R170-097-01 Rev. FB. 48VDC. 670nm Visible. 9.4µm Invisible. 400W Max AVG. 600mJ Max. 1mS Pulse. has been used in Hitachi LCO 1 A 21 E / 10 C machine.