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Small clear glass incandescent bulb with double-contact bayonet base

Ushio

Ushio SM-42409-30060 35W 7V BA15d standard bulb

SKU CH-34VH-MX7J5

35 W 7 V BA15d incandescent lamp rated for 100 hours in medical and scientific equipment

  • Power rating35
  • Lifespan (hours)100
  • Product typeIncandescent Bulbs
  • 35-watt output delivers focused illumination for medical devices
  • 7-volt operation matches specialised equipment power supplies
  • BA15d double-contact bayonet ensures secure, vibration-resistant fit
  • 100-hour rated life suits periodic clinical procedures
  • Clear glass finish provides unfiltered light transmission

Ushio 35 W 7 V BA15d Lamp

The Ushio SM-42409-30060 is a 35 watt incandescent bulb operating at 7 volts with a BA15d double-contact bayonet base. It carries a clear finish and an average rated life of 100 hours. This lamp is identified by product code 8000202 and part number BC8946. It serves as a direct replacement for medical and scientific equipment requiring this specific ANSI-coded lamp.

Suited for exact ANSI-coded replacements

Technicians maintaining devices that specify the SM-42409-30060 ANSI code will find the correct voltage, wattage and base match. Buyers who need a different voltage, a higher lumen output, a longer service life or a screw-base fitting should look at other options.

7 V 35 W BA15d specification

The 7 volt, 35 watt rating combined with the BA15d base determines whether this lamp fits the socket and matches the electrical requirements of the host instrument. Verify both values against the equipment manual before ordering.

How it compares

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

Price $28.99
Pricier than about 66% of the 1,791 comparable items (median $17.99).

Specifications

Product
Brand nameUshio
Product typeIncandescent Bulbs
Power
Power rating35
More details
Lifespan (hours)100

Questions about this item

How much heat does the 35W 7V incandescent filament produce during continuous use?

A 35W incandescent lamp converts most input power to heat; expect the envelope to become very hot within minutes and to radiate significant warmth into the surrounding fixture.

What voltage supply and BA15d socket must the fixture already provide for this lamp to operate?

The lamp requires a 7V supply and a BA15d double-contact bayonet socket; verify the fixture delivers exactly 7V and accepts the BA15d base before installation.

Will the 100-hour rated life be shorter if I keep using my existing dimmer or transformer?

Operating the lamp above 7V or with a non-compatible dimmer reduces the 100-hour rated life; use only a 7V source matched to the BA15d base for full rated performance.

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