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Compact bare discharge lamp with cylindrical quartz envelope and ceramic base, 58 by 58 by 66 millimetres

Jaspertronics

Jaspertronics GTD GTD-371 II BEAM-LAMP 380W 18R dlp replacement lamp

SKU CH-4XBM-H27FB

380 W 18R arc discharge lamp replaces the GTD GTD-371 II BEAM fixture bulb and fits numerous moving-head models

  • TypeProject Lamp
  • Weight0.2000
  • Delivers 20,000 lumens for intense stage illumination
  • 380 W discharge arc provides high correlated colour temperature
  • Compact 58 × 58 × 66 mm form factor fits multiple moving-head fixtures
  • Rated 1,500 hours average life for extended show runs
  • Compatible with GTD GTD-371 II BEAM and over 20 other models

Precision Beam Replacement

The Jaspertronics GTD GTD-371 II BEAM-LAMP is a 380W 18R discharge lamp built for moving-head fixtures in worship spaces, clubs, concerts and theatres. It delivers 20,000 lumens at a 7,500 K colour temperature with a CRI of 80 from a compact 58 x 58 x 66 mm arc tube weighing 0.2 kg.

Sustained Output Stability

The 1.2 mm arc gap and any burning position keep intensity steady across a 1,500-hour rated life. A 31.42 mm working distance maintains focus in fixtures that run continuous shows without the colour shift or hot-spot drift common in shorter-gap lamps.

Direct Fixture Upgrade

This bare bulb replaces the original lamp in GTD GTD-371 II BEAM units and compatible models such as Acme XP-380 series, Martin ERA 500 Hybrid IP and TOPPEST TOP 400 BWS. The jump is worth it when an ageing lamp drops below usable brightness or develops arc instability that a simple re-lamp cannot fix.

Highlights

  • Delivers 20,000 lumens for intense stage illumination
  • 380 W discharge arc provides high correlated colour temperature
  • Compact 58 × 58 × 66 mm form factor fits multiple moving-head fixtures
  • Rated 1,500 hours average life for extended show runs
  • Compatible with GTD GTD-371 II BEAM and over 20 other models

Specifications

BrandJaspertronics
ModelGTD GTD-371 II BEAM-LAMP
Part NumberGTD GTD-371 II BEAM-LAMP
TypeProject Lamp
Weight0.2000

Questions about this item

How much power does the 380 W lamp draw when running continuously?

The lamp is rated at 380 W and produces 20,000 lumens at a 1.2 mm arc gap, so expect a steady 380 W draw during operation.

Which fixture or ballast must I already own for this lamp to strike?

It fits the GTD GTD-371 II BEAM fixture and compatible movers such as Acme XP-380, Martin ERA 500 Hybrid IP and others listed; a matching 380 W ballast is required.

Will the 7,500 K colour temperature match the older lamps in my GTD-371 II?

Yes, the 7,500 K output and 80 CRI are the same specification used in the original GTD-371 II beam lamps, so colour stays consistent.

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