Product Overview
Sylvania 21703 F25T8/350BL/18in/ECO T8 350nm Blacklight Fluorescent Lamp
The Sylvania 21703 (F25T8/350BL/18in/ECO) is a T8 350nm Blacklight fluorescent lamp on a Medium Bi-Pin (G13) base, 18 in (451.61 mm) long, rated for 7,500 hours.
Wattage See specs T8 UV | Type 350nm 350nm Blacklight | Length 18 in (451.61 mm) Overall | Base G13 Medium Bi-Pin | Rated Life 7,500 Hours |
Technical Specifications
| Item Number | 21703 |
| Ordering Abbreviation | F25T8/350BL/18in/ECO |
| Lamp Type | T8 350nm Blacklight Fluorescent Lamp |
| Base | Medium Bi-Pin (G13) |
| Wattage | Not confirmed – Product name says 25W; previous spec text says 22W |
| Length | 18 in (451.61 mm) |
| Average Rated Life | 7,500 hours |
| Standard Package Quantity | Not listed – verify |
Product Overview
This Sylvania 350nm Blacklight lamp is an ultraviolet T8 fluorescent. Specifications on this page were carried over from the previous ADL Supply listing; this product is not covered in the Sylvania lighting catalog supplied, so confirm against the Sylvania datasheet before ordering.
Compatible Applications
- Blacklight and ultraviolet effect applications where a T8 UV lamp is specified
- Fixtures specified for a T8 lamp with a Medium Bi-Pin (G13) base
- Direct replacement for the Sylvania 21703 (F25T8/350BL/18in/ECO)
Before Ordering – Verify
- Confirm the wattage in your fixture – Product name says 25W; previous spec text says 22W; check the lamp marking or datasheet
- Confirm lamp length and base type match your fixture
- Confirm your ballast or starter matches the lamp type and wattage
Safety and Handling Guidelines
- This lamp emits ultraviolet (UV) radiation during operation. Avoid prolonged exposure of eyes and skin; follow the manufacturer datasheet for exposure limits.
- Always disconnect power before servicing or installing
- Handle by the base/end caps; avoid flexing or striking the glass tube
- Contains mercury – if broken, ventilate the area and follow EPA cleanup guidance
- Dispose of / recycle in accordance with state and local mercury-lamp regulations
Ordering Information
- Item Number: 21703
- Ordering Abbreviation: F25T8/350BL/18in/ECO
- Manufacturer Part Number: F25T8/350BL/18in/ECO
- UPC: 46135217036
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.
