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Small clear glass incandescent bulb with metal base

Ushio

Ushio SM-77458 30W Incandescent Bulb

SKU CH-DDV2-JJPSV

A 30-watt incandescent bulb rated for 115 or 125 volts with a 200-hour life

  • TypeIncandescent Bulbs
  • Wattage30
  • Life Time Hours200
  • 30 W power draw suits specialised medical and scientific fixtures
  • 200-hour rated life matches short-cycle clinical procedures
  • 115 V and 125 V dual-voltage rating covers common facility supplies
  • Incandescent spectrum delivers consistent colour rendering for diagnostic tasks
  • Ushio SM-77458 model ensures exact replacement for listed equipment

Medical and Scientific Illumination

The Ushio SM-77458 is a 30-watt incandescent bulb built for healthcare and scientific equipment. It operates on 115 to 125 volt supplies and carries the manufacturer part number 8000238. This lamp suits technicians who need a direct replacement for existing fixtures in clinical or laboratory devices.

Thermal Output and Power Draw

As an incandescent source, the bulb converts most of its 30 watts into heat rather than light. The filament runs hot during normal operation, so the fixture must tolerate elevated surface temperatures. Rated life is 200 hours at the specified voltage range.

Packaging and Compatibility Notes

The unit ships as a single lamp without additional hardware, cables or control software. Installation is a straightforward socket insertion, but the short 200-hour lifespan means spares should be kept on hand for critical medical or scientific instruments. First listed by the manufacturer on 31 December 2020.

Highlights

  • 30 W power draw suits specialised medical and scientific fixtures
  • 200-hour rated life matches short-cycle clinical procedures
  • 115 V and 125 V dual-voltage rating covers common facility supplies
  • Incandescent spectrum delivers consistent colour rendering for diagnostic tasks
  • Ushio SM-77458 model ensures exact replacement for listed equipment

Specifications

BrandUshio
TypeIncandescent Bulbs
Wattage30
Life Time Hours200

Questions about this item

How do I install the SM-77458 incandescent bulb and what is the common mistake?

Screw the bulb into a socket rated for 115 V or 125 V; the common mistake is using a fixture that exceeds the 125 V upper limit.

What maintenance or replacement will the SM-77458 bulb need later?

Replace the bulb after approximately 200 hours of operation when the filament fails.

What limit appears first on the SM-77458 bulb during sustained use?

The 200-hour rated life is the first limit reached under continuous operation.

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