Sylvania 21278CF5DS/841/ECO – 5W | 4100K Cool White | 230 lm | G23 2-Pin

The Sylvania 21278CF5DS/841/ECO is a 5W 4100K Cool White 2-pin compact fluorescent lamp delivering 230 lm initial lumens, CRI 82, G23 2-Pin base, and 10,000-hour rated life. This lamp requires an external compatible ballast — it is not self-ballasted. Non-dimmable. UPC: 46135212789.

Quick Specs

• Brand: Sylvania
• Item / Catalog Number: Sylvania 20325
• EAN / UPC: 46135212789
• ANSI Standard: C78.901 - 2001
• Lamp / Bulb Type: T4 2-Pin CFL (Single Tube)
• Wattage: 5W
• Color Temperature: 4100K Cool White
• CRI: 82
• Initial Lumens: 230 lm
• Rated Average Life: 10,000 hours
• Base Type: G23 2-Pin
• Overall Length (MOL): 4.2in
• Dimmable: No — non-dimmable
• Ballast Requirement: External ballast required — not self-ballasted
• Compatible Ballast Type: Magnetic

Product Overview

The Sylvania 21278CF5DS/841/ECO is a 5W 4100K Cool White 2-pin compact fluorescent lamp designed for cool white for commercial offices, warehouses, and institutional facilities. Rated life of 10,000 hours reduces maintenance frequency in commercial installations. CRI 82 provides good color rendering for task and display applications. This lamp requires an external preheat ballast with an integral starter — it is not self-ballasted. Non-dimmable.

The 2-pin base design incorporates a built-in special instant starter and capacitor within the housing, allowing operation on compatible preheat magnetic ballasts. This lamp is manufactured in accordance with ANSI C78.901-2001 and is TCLP compliant.

Applications

• Commercial and residential 2-pin CFL fixtures – Recessed downlights, wall sconces, accent fixtures, and commercial ambient lighting requiring cool white for commercial offices, warehouses, and institutional facilities.
• Retrofit and maintenance replacement – Drop-in replacement in compatible 2-pin CFL fixtures. Confirm base type, wattage, and ballast compatibility before ordering.

Replacing Your Current 2-Pin CFL?

• Base type — confirm 2-pin vs 4-pin: This lamp uses a G23 2-Pin 2-pin base. 2-pin and 4-pin lamps are not interchangeable. Check your fixture socket.
• G23 2-Pin base — verify socket: Confirm your fixture uses G23 2-Pin sockets. Verify exact designation with fixture documentation.
• Ballast compatibility: Requires compatible external preheat magnetic ballast with integral starter. Verify ballast is rated for 5W and G23 2-Pin.
• Wattage — 5W: Confirm your ballast and fixture are rated for 5W.
• Dimmable — No: Non-dimmable. Do not install on a dimmer circuit.

Ordering Information

• Brand: Sylvania
• Item / Catalog Number: Sylvania 20325
• UPC / EAN: 46135212789
• Wattage / CCT: 5W / 4100K Cool White
• Base: G23 2-Pin
• Case quantities and bulk pricing: Contact ADL Supply for volume orders.

Compliance

• ANSI C78.901-2001 compliant.
• TCLP compliant — designed to pass Toxicity Characteristic Leaching Procedure.
• Verify RoHS compliance with manufacturer specification sheet.
• Verify Prop 65 warning requirements with manufacturer specification sheet.
• This lamp contains mercury — dispose per local lamp recycling regulations. Visit lamprecycle.org.

ADL Supply recommends confirming all specifications with the manufacturer product data sheet prior to installation.