OSRAM Lok-it! HSD 300 W/80/P28 - Discharge lamp for moving heads (PGJX28, 300 W, 8.7 K)

OSRAM Lok-it! HSD 300 W/80/P28 - Discharge lamp for moving heads (PGJX28, 300 W, 8.7 K)

The OSRAM Lok-it! HSD 300 W/80/P28 is a high-performance metal halide lamp designed for dramatic lighting in moving heads, theater, concerts, TV/studio, and architectural applications. Its PGJX28 (Lok-it!) base allows for quick "twist and lock" replacement from the back of the fixture, minimizing downtime during tours and events. With 300 W , 95 V , and a nominal current of 3.2 A , it delivers a nominal luminous flux of 20,500 lm , a color temperature of 8,700 K , and a CRI > 70 for crisp, penetrating beams.

The eXtreme Seal (XS) technology withstands temperatures up to 450°C at the pinch seal , providing thermal robustness and photometric stability. Its short arc gap optimizes the luminaire's efficiency and promotes a concentrated beam, with a 67 mm LCL in a compact format ( Ø 23 mm , length 122.3 mm ). It is a common solution in fixtures from leading brands (e.g., Claypaky Alpha 300 , Chauvet Legend 300E , Robe Robin 300 , Coemar Infinity ), always checking compatibility in the manufacturer's manual.

Main features

• Lok-it! PGJX28 base for ultra-fast and secure replacement from the back of the light.
• High system efficiency thanks to short arc and optimized geometry.
• XS (eXtreme Seal) : thermal resistance up to 450 °C in the seal.
• Stable photometric output during the nominal service life ( 2,000 h ).
• Improved ceramic base suitable for ignition voltages up to 35 kV .

Product benefits

• Less downtime : The Lok-it! PGJX28 system speeds up roadside replacement or assembly.
• Higher luminaire performance : short arc = more useful intensity in beam/spot.
• Durability : materials and sealing prepared for high temperatures in moving heads.
• Consistency : lumen maintenance that helps maintain uniform looks throughout the show.

Use cases

• Concerts and tours : concentrated and sharp beams for long-distance effects.
• Theatre and TV/Studio : stable projection and cool color that cuts in the mix.
• Club/Disco and architainment : dynamic effects with high intensity.

Frequently Asked Questions

Is it compatible with my moving head unit?
Verify that the fixture specifies HSD 300/80 with a PGJX28 base . Many Claypaky, Chauvet, Robe, Coemar , and other models use this lamp, but compatibility should be confirmed in the manual.

What advantages does the Lok-it! system offer?
It allows for quick change (turn and lock) and rear access, improving safety and maintenance times.

Does it require an enclosed light fixture?
Yes. Due to its high luminance, UV radiation, and internal pressure , it must operate in enclosed spaces with adequate UV filtering.

Usage recommendations

• Respect the working position indicated by the fixture manufacturer .
• Avoid touching the bulb; use clean gloves to preserve its lifespan.
• Check the ventilation and thermal management of the equipment, key to maintaining flow and color.

Project description

OSRAM Lok-it! HSD 300 W/80/P28 Metal Halide Lamp: 300 W , 95 V , 3.2 A ; 20,500 lm ; 8,700 K ; CRI > 70 ; PGJX28 ; LCL 67 mm ; electrode gap 5 mm ; Ø 23 mm ; length 122.3 mm ; rated life 2,000 h ; XS technology (450 °C) ; for use in enclosed entertainment luminaires.