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APPROVED VENDOR Incandescent Bulb: Incandescent, Glass Wedge (W2.1x9.5d), (T) Tubular, T3-1/4 - W2.1x9.5d Wedge Base Lamps
APPROVED VENDORW2.1x9.5d Wedge Base Lamps

APPROVED VENDOR Incandescent Bulb: Incandescent, Glass Wedge (W2.1x9.5d), (T) Tubular, T3-1/4

The APPROVED VENDOR Incandescent Bulb is a W2.1x9.5d Wedge Base Lamp with a T3-1/4 tubular glass shape. It operates at 14V AC and produces white light, identified by Trade Number 158 (MPN 21U533).

SKU 3G-OTH-386138

Brand
APPROVED VENDOR
Item
Incandescent Bulb: Incandescent, Glass Wedge
Category
W2.1x9.5d Wedge Base Lamps
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Technical Specifications

APPROVED VENDOR
Manufacturer Part Number
21U533
Type
Glass Wedge (W2.1x9.5d), (T) Tubular, T3-1/4, 158
Voltage
14V AC
Bulb Shape
T3-1/4
Light Color
White
Trade Number
158
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APPROVED VENDOR Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APPROVED VENDOR Incandescent Bulb is a W2.1x9.5d Wedge Base Lamp with a T3-1/4 tubular glass shape. It operates at 14V AC and produces white light, identified by Trade Number 158 (MPN 21U533).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the APPROVED VENDOR 21U533 incandescent bulb used for?

The APPROVED VENDOR 21U533 incandescent bulb is used for indicator and pilot lighting in industrial control panels, instrumentation, and machinery. Its T3-1/4 tubular shape and W2.1x9.5d wedge base fit standard panel-mount lamp holders, providing white light at 14V AC for status indication.

What are the specifications of the APPROVED VENDOR 21U533 bulb?

The APPROVED VENDOR 21U533 is a T3-1/4 tubular incandescent bulb with a W2.1x9.5d glass wedge base. It operates at 14V AC, produces white light, and carries Trade Number 158. The manufacturer part number is 21U533. It is designed for low-voltage indicator applications.

Where to buy the APPROVED VENDOR 21U533 bulb worldwide?

You can source the APPROVED VENDOR 21U533 incandescent bulb worldwide through 3G Electric. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to install a W2.1x9.5d wedge base bulb like the 21U533?

To install the APPROVED VENDOR 21U533, ensure power is off. Align the W2.1x9.5d glass wedge base with the socket and push firmly until seated. Do not twist. For removal, gently pull the bulb straight out. Use only 14V AC rated sockets to avoid damage.

Used in

Common applications for APPROVED VENDOR
Laboratory sampling — APPROVED VENDOR clear wide mouth glass bottles for collecting and storing liquid samples in non-sterile environments.
Steam heating maintenance — APPROVED VENDOR forged brass radiator valves for regulating steam flow in commercial building heating systems.
High-pressure cleaning — APPROVED VENDOR turbo spray nozzles for pressure washers used in industrial equipment cleaning up to 6,000 psi.
Cleanroom operations — APPROVED VENDOR vinyl task chairs for seating in ISO 5 classified manufacturing or assembly areas.
General sealing — APPROVED VENDOR natural rubber stoppers for closing laboratory flasks or test tubes in educational or research settings.
Tamper-evident security — APPROVED VENDOR brass lead and wire seals for securing utility meters, cargo containers, or access panels.

APPROVED VENDOR Products

3G Electric supplies APPROVED VENDOR w2.1x9.5d wedge base lamps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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