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Clear glass S8 incandescent bulb with double-contact prefocus base

Lumapro

Lumapro 1460X 18W S8 Incandescent Light Kit

SKU CH-TW8P-NP66K

A 6.5 V, 18 W S8 miniature incandescent bulb with a double-contact prefocus base delivers 289 lumens at 2700 K for 100 hours of indoor use

  • 18 W incandescent output for bright task lighting
  • 289 lumens at 2700 K for warm white illumination
  • Double-contact prefocus base fits compatible fixtures
  • 5 V AC operation suits low-voltage systems
  • 100-hour rated life for short-cycle applications

Ideal for low-voltage fixtures

This 6.5 V AC incandescent bulb produces 289 lm of 2700 K white light at 18 W. It suits indoor fixtures that require a double-contact prefocus P15d base and an S8 miniature envelope.

Glass envelope with P15d base

The clear glass housing is not shatter-resistant and is rated for indoor use only. The double-contact prefocus base locks into compatible sockets, preventing accidental loosening during vibration or maintenance.

Short 100-hour rated life

Incandescent operation generates noticeable heat for the 18 W draw, so airflow around the fixture is advisable. The bulb is not dimmable, not rated for enclosed fixtures and carries no three-way function.

How it compares

Measured against everything we stock in LED Lighting Kits, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 91% of the 1,591 comparable items (median $33.99).

Specifications

Product
Brand nameZORO SELECT

Questions about this item

What does the 6.5V AC rating mean for power supply compatibility?

The bulb operates on 6.5 volts AC, so the fixture or transformer must supply exactly that voltage to avoid damage or premature failure.

Will the P15d double-contact prefocus base fit my existing socket?

The P15d base has two contacts and a prefocus flange; it only fits sockets designed for that specific base type, not standard screw or bayonet sockets.

How do I install the bulb without shortening its 100-hour rated life?

Insert the bulb straight into the P15d socket until the flange seats fully; do not force or tilt it, as misalignment can crack the glass envelope.

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