We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Frosted tubular halogen bulb with GZ9.5 base

SYLVANIA

SYLVANIA 58941 235W 33V T12 Frosted GZ9.5 Halogen Standard Bulb

SKU CH-F7SF-S1SP9

A 235-watt, 33-volt halogen bulb with a frosted T12 envelope and GZ9.5 base delivering 5800 lumens at 3250 K

  • TypeHalogen Bulbs
  • Lumen Range5800
  • Wattage235
  • Color Temperature3250K
  • Life Time Hours200
  • Color Rendering Index100
  • Bright 5800 lumen output from 235 watt halogen
  • Precise 33 volt operation with GZ9.5 base
  • Perfect 100 CRI renders colours accurately
  • Warm 3250K light suits stage and studio
  • 200 hour rated life for short-run applications

High-wattage halogen bulb for 33 V fixtures

The SYLVANIA 58941 is a 235 W tungsten halogen lamp built for low-voltage circuits without a reflector. It produces 5800 lumens at a 3250 K colour temperature and carries a colour rendering index of 100. The GZ9.5 base fits compatible sockets in professional and specialist lighting equipment. Rated life is 200 hours.

Frosted envelope diffuses output evenly

The frosted T12 glass softens the filament glare and spreads light more uniformly than a clear capsule. This reduces hot-spots on subjects and eases integration into soft-boxes or follow-spots where even illumination matters. No additional diffusion accessories are required to achieve this effect.

Verify 33 V supply and GZ9.5 socket before ordering

The lamp only operates on a 33 V system; connecting it to mains voltage will destroy it instantly. Confirm the fixture accepts a GZ9.5 bi-pin base and that the circuit can deliver 235 W continuously. Buyers needing longer service intervals or higher efficacy should consider alternative lamp technologies.

Highlights

  • Bright 5800 lumen output from 235 watt halogen
  • Precise 33 volt operation with GZ9.5 base
  • Perfect 100 CRI renders colours accurately
  • Warm 3250K light suits stage and studio
  • 200 hour rated life for short-run applications

Specifications

BrandOSRAM
TypeHalogen Bulbs
Lumen Range5800
Wattage235
Color Temperature3250K
Life Time Hours200
Color Rendering Index100

Questions about this item

How often will the 235 W halogen capsule need replacement at its rated 200-hour life?

The lamp is rated for 200 hours of operation; at typical daily use it will require replacement once those hours are reached.

What is the first limit reached during continuous operation — the 200-hour life or the 5 800 lumen output?

The rated 200-hour life is the limiting factor; lumen output is specified for the full rated life.

How much heat does the 235 W T12 capsule produce when run all day on a 33 V supply?

At 235 watts the bulb converts nearly all input power into heat, so the fixture must handle sustained high-temperature operation.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.