The USHIO Item Code 1000236 is an ANSI Code DXW halogen lamp.  It was originally made by GE Lighting as the Q1000T5/1CL, which was discontinued.  

Specifications

• Voltage: 120V
• Wattage: 1000W
• Base: R7S-18
• Burn Position:  ANY
• MOL (mm): 95.0
• Length, Contact to Contact: 89.6mm
• Lighted Length (lm):23.0
• Bulb Shape: T6 Tube (ø18mm)
• Bulb Finish:  CLEAR
• Color Temp: 3200K
• Efficacy (lm/W): 28.0
• Filament: CC-8
• Initial Luminous Flux (lm): 28000
• Typ. Life: 150 hrs