OSRAM HTI 400 W/D3/75 SharXS – Short Arc Metal Halide Lamp SFc10-4, 7,500 K for Entertainment and Projection

OSRAM HTI 400 W/D3/75 SharXS – Short Arc Metal Halide Lamp SFc10-4, 7,500 K for Entertainment and Projection

The OSRAM HTI 400 W/D3/75 SharXS is a professional metal halide lamp with an extra-short arc (3.0 mm) and SFc10-4 bases, designed for moving heads , projectors, and architainment luminaires. It offers a nominal luminous flux of 26,000 lm with a color temperature of 7,500 K and a CRI of 80 , providing a very sharp and long-range cool white light. It operates at 50 V AC and 8.5 A (≈400 W), with a firing voltage of 3.0/25 kVp (cold/hot) and hot-restart capability . The SharXS construction standardizes a length of 136 mm and an LCL of 57.5 mm for easy integration, while the eXtreme Seal (XS) technology withstands up to 450 °C in the clamp for enhanced thermal robustness. Nominal life: 1,000 h .

Main features

• Short arc of 3.0 mm and luminance of 55,000 cd/cm² for very defined and high intensity beams.
• Color and light quality : 7,500 K , CRI 80 , 26,000 lm (≈ 65 lm/W efficiency).
• SharXS Compatibility : Length 136 mm , LCL 57.5 mm , Diameter 18 mm , Base SFc10-4 , Universal Burn Position .
• Operation : 50 V AC , 8.5 A , 3.0/25 kVp ignition (cold/hot), hot restart .
• Thermal robustness : XS technology with 450 °C max. in the clamp; weight 30 g .
• Useful life : 1,000 h (B50).

Product benefits

• High "punch" and range thanks to the short arc and high luminance.
• Consistency and maintenance of color/flow throughout the shelf life.
• Quick installation thanks to standardized SharXS dimensions and pre-focused base.
• Reliability in intensive use: supports hot restrike and high temperatures in compact luminaires.

Use cases

• Entertainment : moving head beam/spot lights , effects and stagecraft for tours and theaters.
• Events and television : concentrated beams, long-distance projections and backlighting.
• Technical applications : solar simulation/testing (depending on the optics and filters of the equipment).

Frequently Asked Questions

Is the working position universal? Yes, the burn position is Any (universal).

Can it be hot-swung? Yes, with the appropriate ignition equipment/ballast (25 kVp hot-swung).

What ballast do you need? An HTI 400W lamp ballast with 3.0/25 kVp ignition and 50V/8.5A (AC) control.

Safety and handling

• Operate only in enclosed housings with suitable UV filters, due to their high luminance, UV radiation and internal pressure.
• Contains mercury ; follow established handling/recycling procedures.
• Do not touch the quartz; clean with isopropyl alcohol if necessary.

Project description

OSRAM HTI 400 W/D3/75 SharXS discharge lamp, SFc10-4 base, 400 W , 50 V AC , 8.5 A , ignition 3.0/25 kVp (cold/hot), 26,000 lm , 7,500 K , CRI 80 , luminance 55,000 cd/cm² , arc 3.0 mm , LCL 57.5 mm , length 136 mm , diameter 18 mm , position Any , max. clamping 450 °C , weight 30 g , nominal life 1,000 h ; with XS technology and hot restrike capability.