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Osram

64258 54262 OSRAM 20W 12V G4 Clear Halogen Lamp
22.99 USD
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Match OSRAM 64258, Americas order number 54262, and the complete 20W / 12V / G4 / 19.5 mm LCL optical-lamp specification. This precision-filament lamp has no ANSI or LIF code; an ordinary 20W G4 capsule is not automatically equivalent.

Specifications
Manufacturer OSRAM
Global product reference 64258
Americas order number 54262
Product code / EAN 4050300285153
ANSI / LIF code None assigned
Technology Tungsten-halogen precision optical lamp
Wattage 20 W
Voltage / current type 12 V AC
Base G4 two-pin
Finish Clear
Nominal luminous flux 335 lm
Color temperature 3000 K
Color rendering index CRI 100
Light center length 19.5 mm (0.768 in)
Illuminated field 3.2 × 0.9 mm (restricted tolerance)
Maximum overall length 30.5 mm
Diameter 9.5 mm
Product weight 1.24 g
Average rated life 2,000 hours
Equipment compatibility

Documented equipment references

Specialty-lamp equipment indexes identify 64258 / 54262 for the visible or tungsten source in these Beckman instruments:

  • Beckman DU 50 spectrophotometer — visible/tungsten source; verify the required OEM lamp specification
  • Beckman DU 60 series spectrophotometers — visible/tungsten source; verify the required OEM lamp specification
  • Beckman DU 70 spectrophotometer — visible/tungsten source; verify the required OEM lamp specification
  • Beckman DU 600 series spectrophotometers — visible/tungsten source; verify the required OEM lamp specification
  • Beckman DU 7000 series spectrophotometers — visible/tungsten source; verify the required OEM lamp specification

Important: some instrument manufacturers supply selected, coated, aligned, or lamp-holder assemblies even when the capsule is marked 64258. Confirm the service manual, OEM part number, spectral requirements, and whether your repair calls for a bare lamp or complete assembly.

Do not use this page as authorization for medical-device service. Use only where the equipment documentation explicitly permits the bare OSRAM 64258 / 54262 lamp.

Cross-reference and ordering codes
  • 64258 — OSRAM global product reference
  • 54262 — OSRAM Americas / NAED order number
  • 4050300285153 — manufacturer product code / EAN

No separate active stocked Dynamic Lamps brand-equivalent page was verified. Match the full electrical, dimensional, filament-field, and LCL specification before considering any alternative.

Documentation and safety

Safety: operate only in suitable low-voltage equipment with the protective shield or enclosure required by the manufacturer. Disconnect power and allow the lamp to cool before service. Keep the quartz envelope clean and follow the equipment service procedure.