Blueprint Lighting

Bulb Option

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$5.94 $9 In stock

Blueprint Lighting offers a selection of compact E12‑base bulbs designed for fixtures that require a small, screw‑in lamp. Choose from low‑watt 2.5 W T3 bulbs or higher‑output 4.5 W T4 models, each available in warm‑white 2700 K or soft‑white 3000 K illumination.

  • E12 (candelabra) base fits standard decorative sockets.
  • 2.5 W T3 version provides a gentle, ambient light.
  • 4.5 W T4 version delivers a brighter output while retaining the same base size.
  • Color temperature options: 2700 K for warm white or 3000 K for soft white.
  • Available in single, 2‑pack, or 3‑pack quantities to suit any project.
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.4 / 5 · 5 reviews)

James K. ★★★★★

These little E12 bulbs finally fit my bedside lamp that's been sitting useless for months. The 4.5W T4 is plenty bright for reading, and it screws in snug with no flicker.

Edward W. ★★★★★

I grabbed the 2.5W T3 bulbs for a small bedside fixture that kept overheating with full-size lamps, and these stay cool enough to touch after hours. The E12 base twisted in without any wobble.

Ella L. ★★★★★

The 2.5W T3 bulb fits my little bedside lamp perfectly, and the E12 base screwed right in without any fuss. Warm light, no flicker, and it’s been running daily for two weeks now. Exactly what I needed for that fixture.