Product Overview
The Sylvania 40W T12 Deluxe Daylight is a professional-grade 4-foot T12 linear fluorescent lamp engineered for indoor commercial, retail, office, and institutional applications requiring high-fidelity daylight color rendering. Delivering 2,180 initial lumens of 6500K full-spectrum daylight output at 88 CRI, this 1.5-inch diameter T12 tube utilizes a G13 medium bi-pin base and is rated for up to 28,800 hours on extended burning cycles — providing a high-accuracy color environment ideal for task lighting, artwork assessment, textile evaluation, and print-matching applications where natural daylight color fidelity is a performance requirement.
| Wattage 40W T12 4-Foot Linear | Initial Lumens 2,180 lm 1,770 lm Mean | Color Temp 6500K Deluxe Daylight | CRI 88 CRI Full Spectrum | Rated Life 20,000–28,800 Hr Cycle Dependent |
ADL Supply Expert Application & Replacement Guide
The Sylvania 40W T12 Deluxe Daylight is primarily specified by electrical contractors, facility managers, and procurement teams maintaining T12 fluorescent fixture inventories in older commercial buildings, schools, print shops, textile studios, art departments, and retail environments where the 6500K daylight color temperature is specified for accurate color assessment or natural light simulation. The T12 format is the older 1.5-inch diameter fluorescent tube — it is not interchangeable with T8 lamps, which have a 1.0-inch diameter and different ballast electrical parameters. T12 lamps require T12-rated ballasts — either magnetic (the original T12 platform) or a T12-compatible electronic ballast specifically listed for 40W T12 operation — and will not operate correctly on standard T8 electronic ballasts. Facilities with T8 fixtures cannot use this lamp without replacing both the ballast and the lampholders. This lamp is sold in cases of 30, making it well-suited for large-scale institutional relamping programs maintaining legacy T12 fixture inventories where fixture replacement is not yet budgeted.
Before You Order
| Verify Before Ordering T12 Format — Not Compatible with T8 Fixtures or T8 Ballasts | Requires T12-Rated Ballast This is a T12 lamp (1.5-inch diameter tube) and requires a T12-rated ballast — either magnetic or a T12-compatible electronic ballast specifically listed for 40W T12 operation. It will not operate on standard T8 electronic ballasts and will not physically fit correctly in T8 fixture lamp channels. Confirm your fixture is a T12 platform before ordering. Also confirm your ballast is rated for 40W T12 lamps, not 32W T8. |
Detailed Product Specifications
- Brand: Sylvania (Ledvance)
- Product Line Series: Deluxe Daylight T12 Linear Fluorescent
- Manufacturer Part Number: Confirm with Sylvania specification sheet
- Core Technology: T12 Linear Fluorescent — Deluxe Daylight Phosphor
- Ballast Requirement: T12-rated magnetic or T12-compatible electronic ballast — 40W T12 specifically
- Wattage: 40W
- Initial Lumens: 2,180 lm (measured after 100-hour seasoning)
- Mean Lumens: 1,770 lm
- Color Temperature (CCT): 6500K Deluxe Daylight
- Color Rendering Index (CRI): 88
- Base Type Configuration: G13 Medium Bi-Pin
- Tube Diameter: T12 — 1.5 inches (38mm)
- Maximum Overall Length (MOL): 47.78 inches (1213.6mm)
- Nominal Length: 48 inches / 4-foot class
- Burn Position: Universal — Any Orientation
- Rated Life — 3-Hour Burning Cycles: 20,000 Hours
- Rated Life — Extended / 12-Hour Cycles: Up to 28,800 Hours
- Case Quantity: 30 lamps per case
- Mercury Content: Contains mercury — recycle per applicable regulations
Operation, Safety & Mounting Compliance
T12 Ballast Requirements & T8 Incompatibility
T12 fluorescent lamps operate at different lamp current and voltage parameters than T8 lamps — the ballast must be specifically rated for 40W T12 operation. Original T12 magnetic ballasts remain compatible and are the most common platform in legacy T12 fixture installations. T12-compatible electronic ballasts are available and offer improved energy efficiency over magnetic alternatives, but must be specifically listed for 40W T12 lamps — do not attempt to operate this lamp on a standard T8 electronic ballast, as the electrical parameters are mismatched and the result will be non-ignition or immediate lamp damage. The 1.5-inch T12 tube diameter is physically larger than the 1.0-inch T8 tube, which may also prevent correct seating in fixture lampholders dimensioned for T8 glass.
Rated Life, Burning Cycles & Mercury Disposal
Rated life for this lamp varies significantly with burning cycle duration — the 20,000-hour rating is based on 3-hour on/off cycles per ANSI test standards, while extended continuous-burn or 12-hour cycle installations can achieve up to 28,800 hours. Frequent short-cycle switching (less than 3 hours per cycle) will reduce lamp life below the 3-hour rated value. Initial lumen output is measured after a 100-hour seasoning period. This lamp contains mercury and must be recycled through a certified lamp recycling program — do not discard in standard municipal solid waste. State shipping restrictions may apply in CA, CO, HI, ME, MN, OR, RI, and VT — confirm shipping eligibility before ordering.
Industry Cross-Reference Data
- GE Lighting: F40T12/D/ECO (equivalent 40W T12 daylight 6500K G13)
- Philips: F40T12/D (equivalent 40W T12 6500K daylight linear)
- Osram: L40W/11-860 (equivalent 40W T12 daylight fluorescent)
- Legacy Cross-Reference: Direct maintenance replacement for 40W T12 daylight fluorescent lamp positions in legacy 4-foot T12 magnetic and T12-compatible electronic ballast fixture installations
Bulk Commercial Lighting Supply & Project Support
ADL Supply delivers commercial-volume logistical fulfillment, tiered commercial contractor discounting strategies, and full pallet project quoting options to electrical accounts across the United States.
For formal wholesale inquiries, volume pricing modifications, or manufacturer spec sheet documentation, reach our commercial branch directly at 1-800-235-3489. We are your commercial supply partners as an authorized wholesale Lighting Distributor In Doral, Florida.
