APPROVED VENDOR Incandescent Bulb: Incandescent, Telephone Slide No. 2, T2, 48C2, 48V AC
The APPROVED VENDOR Incandescent Bulb is a Telephone Slide #2 Base Lamp with a T2 bulb shape and a trade number of 48C2. It operates at 48V AC and produces white light. This incandescent bulb is identified by…
SKU 3G-OTH-389121
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Product Description
The APPROVED VENDOR Incandescent Bulb is a Telephone Slide #2 Base Lamp with a T2 bulb shape and a trade number of 48C2. It operates at 48V AC and produces white light. This incandescent bulb is identified by manufacturer part number 21U508.
Frequently Asked Questions
What is the APPROVED VENDOR 21U508 incandescent bulb used for?
The APPROVED VENDOR 21U508 incandescent bulb is a Telephone Slide #2 base lamp used for indicator or pilot lighting in telecommunications equipment, control panels, and industrial signaling systems. Its T2 shape and 48V AC rating make it suitable for low-voltage applications requiring a compact white light source.
What are the specifications of the APPROVED VENDOR 21U508 bulb?
The APPROVED VENDOR 21U508 is a T2-shaped incandescent bulb with a Telephone Slide #2 base, trade number 48C2. It operates at 48V AC and produces white light. The manufacturer part number is 21U508. This bulb is designed for use in telephone slide base lamp sockets.
Where to buy the APPROVED VENDOR 21U508 bulb worldwide?
3G Electric supplies the APPROVED VENDOR 21U508 incandescent bulb worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this Telephone Slide #2 base lamp for your telecommunications or control panel needs.
How to install the APPROVED VENDOR 21U508 telephone slide bulb?
To install the APPROVED VENDOR 21U508, ensure power is off and the socket is clean. Align the Telephone Slide #2 base with the socket and push gently until seated. Do not overtighten. Verify the 48V AC supply matches the bulb rating. Replace with the same trade number 48C2 for consistent performance.
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3G Electric supplies APPROVED VENDOR telephone slide #2 base lamps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









