Product Overview
Osram Sylvania 20804 L 70W/ 21 - 840 G13
The Osram Sylvania 20804 L 70W/ 21 - 840 G13 is an OSRAM T8 linear fluorescent lamp for commercial, institutional, industrial, retail, display, and maintenance lighting applications. This format uses a G13 medium bi-pin base and the OSRAM LUMILUX T8 family is built around a 26 mm T8 tube diameter.
This row was organized for readability using the product name and the OSRAM T8 family format. Confirm the exact lumen output and application code against the existing lamp or manufacturer packaging before ordering.
Wattage 70W T8 Lamp |
Base G13 Medium Bi-Pin |
Color /21 Not Listed |
Lumens Not Listed Nominal |
Diameter 26 mm T8 |
Product Overview
OSRAM LUMILUX T8 lamps are designed for efficient fluorescent lighting with good lumen maintenance, reduced power consumption compared with basic T8 lamps, and good color rendering for commercial interiors. The LUMILUX T8 technical guide lists a G13 base, 26 mm tube diameter, and multiple color options from warm white to daylight and SKYWHITE.
This lamp is best selected by matching the lamp code, wattage, color code, base, and overall length to the lamp being replaced.
Technical Specifications
| Brand | OSRAM |
| Product Family | LUMILUX T8 Linear Fluorescent |
| Product / SKU | OSL70W/840 |
| Lamp Code | L 70W/21 |
| Wattage | 70W |
| Base Type | G13 Medium Bi-Pin |
| Tube Diameter | 26 mm |
| Overall Length | 1778 mm |
| Nominal Length | 1763.8 mm |
| Color Code | /21 |
| Light Color | Not Listed |
| Color Temperature | Not Listed |
| Color Rendering | Not Listed |
| Nominal Luminous Flux | Not Listed |
| Rated Life | Confirm From Existing Lamp / Ballast System |
| Packaging Unit | 25 lamps per shipping unit when listed in the OSRAM logistics table |
| EAN 10 | Not Listed / Verify |
| EAN 40 | Not Listed / Verify |
Compatible Applications
- Office lighting and commercial interiors
- Retail, restaurant, and display lighting
- Schools, healthcare facilities, and institutional buildings
- Industrial and warehouse strip fixtures
- Facility maintenance and relamping projects
- Fixtures using G13 T8 fluorescent lamps and compatible fluorescent ballasts
Before Ordering Verify
- Wattage: Confirm the fixture and ballast are rated for 70W T8 fluorescent operation.
- Length: Match the overall length of 1778 mm before replacing an existing lamp.
- Base: Confirm the fixture uses G13 medium bi-pin sockets.
- Color: Match /21 if replacing lamps in an existing space to avoid color mismatch.
- Ballast Compatibility: Verify the lamp is compatible with the installed fluorescent ballast or OSRAM QUICKTRONIC system.
- Specification Confirmation: Some specialty color/high-CRI specifications are not listed in the supplied LUMILUX PDF. Match against the existing lamp and packaging before ordering.
Safety & Handling
- Turn Power Off: Disconnect power before removing or installing fluorescent lamps.
- Handle Carefully: T8 fluorescent tubes are fragile and should not be forced into sockets.
- Recycle Properly: Fluorescent lamps should be recycled or disposed of according to local regulations.
- Use Compatible Control Gear: Incorrect ballast operation can reduce lamp life or cause performance problems.
Wholesale & Project Support
ADL Supply supports contractors, facility managers, maintenance teams, and commercial buyers with T8 fluorescent replacement sourcing, project quoting, and bulk order support.
For volume pricing, availability, or help confirming the correct OSRAM replacement lamp, contact ADL Supply at 1-800-235-3489.
