APPROVED VENDOR Incandescent Bulb: Incandescent, Glass Wedge (W2.1x4.9d), (T) Tubular, T1-3/4
The APPROVED VENDOR Incandescent Bulb is a T1-3/4 tubular wedge base lamp with a W2.1x4.9d base, operating at 14V AC. It produces white light and carries Trade Number 74 (MPN 21U524).
SKU 3G-OTH-387145
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Product Description
The APPROVED VENDOR Incandescent Bulb is a T1-3/4 tubular wedge base lamp with a W2.1x4.9d base, operating at 14V AC. It produces white light and carries Trade Number 74 (MPN 21U524).
Frequently Asked Questions
What is the APPROVED VENDOR 21U524 incandescent bulb used for?
The APPROVED VENDOR 21U524 is a T1-3/4 tubular wedge base lamp used for indicator lighting, panel illumination, and small appliance applications. Its 14V AC rating and white light output make it suitable for automotive, marine, and industrial control panels where a compact, reliable light source is needed.
What are the specifications of the APPROVED VENDOR 21U524 bulb?
The APPROVED VENDOR 21U524 is a T1-3/4 incandescent bulb with a glass wedge W2.1x4.9d base. It operates at 14V AC, produces white light, and carries Trade Number 74. The bulb shape is tubular, and the manufacturer part number is 21U524.
Where to buy the APPROVED VENDOR 21U524 bulb worldwide?
3G Electric supplies the APPROVED VENDOR 21U524 incandescent bulb to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this Trade Number 74 wedge base lamp.
How to install a T1-3/4 wedge base bulb like the 21U524?
To install the APPROVED VENDOR 21U524, ensure power is off. Align the W2.1x4.9d wedge base with the socket and push firmly until seated. Do not twist. For 14V AC systems, verify voltage compatibility. Use gloves to avoid oil contamination on the glass, which can reduce bulb life.
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3G Electric supplies APPROVED VENDOR w2.1x4.9d wedge base lamps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















