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Small clear glass S-8 incandescent bulb with P30d prefocus base

Ushio

Ushio SM-1460 6.5V 15W DCPRE Incandescent Standard Bulb

SKU CH-YRK4-KDDCR

A 6.5 V, 15 W incandescent lamp with P30d DC prefocus base rated for 100 hours

  • Power rating15
  • Lifespan (hours)100
  • Product typeIncandescent Bulbs
  • Precise scientific illumination with 6.5 V 15 W output
  • Compact 50.8 mm length fits tight instrument housings
  • Reliable 100-hour rated life for consistent procedures
  • P30d DC prefocus base ensures secure alignment
  • Clear S-8 filament delivers focused, accurate light

Specialised Scientific Illumination

The Ushio SM-1460 is a 15-watt incandescent lamp built for scientific and medical equipment that demands a precise 6.5-volt supply. Its P30d DC prefocus base and S-8 bulb envelope ensure accurate filament positioning in compatible optical instruments.

Replaces Worn Reference Lamps

Technicians swap this unit into devices originally fitted with an ANSI SM-1460 coded bulb when output drops below calibration thresholds. The 100-hour rated life makes the change worthwhile for instruments used in intermittent sessions rather than continuous operation.

Fits Prefocus Optical Housings

The 50.8-millimetre overall length and 33.0-millimetre light centre length match the mechanical register of P30d sockets, freeing alignment time during maintenance. Buyers needing a different voltage, base geometry or longer service interval should verify those specifications before ordering.

How it compares

Measured against everything we stock in General-Purpose & Specialty Bulbs, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 60% of the 1,791 comparable items (median $17.99).

Specifications

Product
Brand nameUshio
Product typeIncandescent Bulbs
Power
Power rating15
More details
Lifespan (hours)100

Questions about this item

What base type does the SM-1460 use for mounting?

The SM-1460 uses a P30d (DC Prefocus) base, also referenced as DCPRE, which fits sockets designed for that specific prefocus pin configuration.

How is the SM-1460 installed, and what step is often missed?

Align the two prefocus pins on the P30d base with the socket slots, then push straight in until seated; the step often missed is verifying the light centre length of 33.0 mm matches the fixture's optical plane.

When will the SM-1460 need replacement based on its rated life?

The manufacturer rates the SM-1460 at 100 hours of continuous use, so plan replacement after approximately 100 operating hours.

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