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Clear glass flash tube for Profoto D2 500 1000 monolights

Profoto

Profoto 331531 Flash Tube D2 500 1000 studio

SKU CH-P3B0-7J3R0

Replacement flash tube rated at 1000 Ws for Profoto D2 500 and 1000 monolights, built with UV-coated Pyrex glass

  • TypeLighting
  • 1000 Ws output powers dynamic action and fine-detail shots
  • UV-coated Pyrex glass resists extreme temperatures for reliable studio use
  • Designed for Profoto D2 500 and 1000 monolights ensuring secure fit and optimal performance
  • Consistent high-quality light output meets professional photographer demands
  • Genuine Profoto replacement part number 331531 maintains original equipment specifications

Flash tube for D2 500 and 1000 monolights

The Profoto 331531 flash tube is a replacement component built for Profoto D2 500 and 1000 series monolights. It supports a 1000 Ws output rating so studio photographers can maintain consistent exposure across high-volume shoots. The UV-coated Pyrex glass construction resists thermal stress during repeated firing cycles. This part is intended for professionals who need reliable flash duration and colour stability.

Thermals noise and power draw

The Pyrex glass envelope handles the heat generated at 1000 Ws without warping, keeping output stable during extended sessions. No moving parts are present, so the tube adds no audible noise to the studio environment. Power consumption is determined by the monolight capacitor discharge rather than the tube itself. The UV coating reduces unwanted spectral spill that can affect sensor response.

Build integration and constraints

Installation requires a compatible D2 500 or 1000 monolight housing; the tube will not fit other Profoto heads or third‑party units. It occupies the flash head socket, leaving the accessory mount free for modifiers such as softboxes or reflectors. Users needing a spare tube for multi‑light setups should verify the exact model match before ordering. This component does not alter the monolight recycling time or trigger latency.

Highlights

  • 1000 Ws output powers dynamic action and fine-detail shots
  • UV-coated Pyrex glass resists extreme temperatures for reliable studio use
  • Designed for Profoto D2 500 and 1000 monolights ensuring secure fit and optimal performance
  • Consistent high-quality light output meets professional photographer demands
  • Genuine Profoto replacement part number 331531 maintains original equipment specifications

Specifications

TypeLighting

Questions about this item

How do I install the flash tube in my D2 500/1000 monolight without damaging the Pyrex glass?

Switch off and unplug the monolight, let it cool completely, then remove the protective cap, align the tube pins with the socket, press straight in until seated, and avoid touching the UV-coated Pyrex glass with bare fingers.

What maintenance or replacement will the Profoto 331531 flash tube need after extended studio use?

Inspect the Pyrex glass for cracks or discoloration and clean only with a lint-free cloth and approved solvent; replace the tube when output drops noticeably or the UV coating degrades after prolonged high-output firing.

At what point does the 1000 Ws flash tube hit its thermal limit during sustained full-power bursts?

The Pyrex construction resists extreme temperatures, but sustained 1000 Ws bursts will eventually trigger the monolight's built-in thermal protection, forcing a cool-down pause before further firing.

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