Product Overview

Philips 21993-1 FB40/DX/6 — 40W T12 Daylight Deluxe Fluorescent Lamp | 6500K | 2,250 Lumens | Medium Bipin (U-Bent)
The Philips 21993-1 FB40/DX/6 is a 40W T12 fluorescent lamp delivering 2,250 initial lumens at 6500K Daylight Deluxe (CRI 84). It uses a Medium Bipin (U-Bent) base and is designed as a U-Bent lamp for standard rapid-start ballast fixtures.
WATTAGE / TYPE 40W / T12 U-Bent | COLOR TEMP 6500K Daylight Deluxe | INITIAL LUMENS 2,250 lm | RATED LIFE 18,000 hr Rated Average | BASE TYPE Medium Bipin (U-Bent) Confirm Socket |
Technical Specifications
| Brand | Philips |
| Product Code / Model | 21993-1 / FB40/DX/6 |
| Lamp Type | Fluorescent — T12 U-Bent |
| Wattage | 40W |
| Base | Medium Bipin (U-Bent) |
| Color Temperature | 6500K Daylight Deluxe |
| CRI | 84 |
| Initial Lumens | 2,250 lm |
| Design (Mean) Lumens | 1,950 lm |
| Rated Average Life | 18,000 hr |
| Length | 22-7/16" |
| Bulb Diameter | 1.5" (T12) |
| Package Quantity | 12 |
| Required Ballast | Standard rapid-start ballast |
Product Overview
The Philips 21993-1 FB40/DX/6 is a 40W T12 u-bent fluorescent lamp delivering 2,250 initial lumens (1,950 lm design/mean) at 6500K Daylight Deluxe, CRI 84. It is built for commercial and industrial fixtures where lamp length, base type, ballast type, wattage, and color temperature must match the existing system.
This lamp is best suited for maintenance replacement in offices, warehouses, retail stores, schools, garages, production areas, and utility spaces. Before ordering, confirm the Medium Bipin (U-Bent) base, 40W wattage, and 6500K color temperature against your existing lamp or fixture label.
Compatible Applications
- Commercial fixture maintenance and retrofit replacement.
- Warehouses, loading docks, production areas, and utility rooms.
- Retail stores, schools, offices, corridors, and service spaces.
- Replacement for compatible FB40 fluorescent fixtures.
Before Ordering – Verify
- Confirm the existing lamp matches FB40/DX/6 or an approved equivalent before ordering.
- Confirm the fixture socket matches the Medium Bipin (U-Bent) base.
- Confirm wattage (40W) and ballast type (Standard rapid-start ballast) are compatible.
- Confirm color temperature (6500K Daylight Deluxe) matches your project spec.
- Confirm physical length (22-7/16", 1.5" T12 diameter) fits your fixture.
Safety and Handling Guidelines
- Disconnect power before installing or servicing.
- Use only in fixtures designed for compatible FB40 T12 fluorescent lamps and the correct ballast type.
- Fluorescent lamps contain mercury and should be recycled or disposed of according to local regulations.
- Follow the fixture manufacturer's instructions and local electrical codes for installation.
Compliance
- Manufactured by Philips Lighting.
- Contains mercury — dispose of/recycle per local regulations.
Ordering Information
- Product Code / Model: 21993-1 / FB40/DX/6
- Description: 40W T12 Daylight Deluxe fluorescent lamp, 6500K, 2,250 lumens, Medium Bipin (U-Bent) base.
- Package Quantity (manufacturer case pack): 12.
- Sold individually unless otherwise noted on the product page.
For wholesale pricing, bulk availability, or help confirming the correct replacement lamp, contact ADL Supply at 1-800-235-3489.