Sylvania 41277 - SubstiTUBE® LED T8 Bulb – 4ft, 12W, 5000K, Dimmable, 82 CRI

Product Features & Benefits

• Energy-Efficient Replacement – Uses only 12W, replacing a 32W fluorescent T8, significantly reducing energy costs.
• High Luminous Output – Produces 2,100 lumens for bright, even lighting in commercial and industrial spaces.
• Dimmable – Works with 0-10V dimming ballasts, allowing brightness adjustment down to 10%.
• Long-Lasting Performance – Rated for 50,000 hours, reducing maintenance and replacement costs.
• Superior Glass Construction – Frosted soft glass ensures even light distribution and reduces glare.
• Wide Operating Temperature Range – Functions efficiently from -20°C to +50°C (-4°F to 113°F).
• Versatile Applications – Ideal for offices, schools, hospitals, warehouses, retail stores, and food-safe environments.
• Instant-On Lighting – Provides full brightness immediately, without warm-up time.
• Compatible with Existing Ballasts – Designed for use with instant start and select programmed rapid start electronic T8 ballasts, minimizing labor costs.
• No Mercury & Lead-Free – Environmentally friendly and compliant with RoHS standards.

Specifications

• Brand: Sylvania
• Series: SubstiTUBE®
• Bulb Type: T8
• Length: 4ft (48 inches)
• Base Type: G13 (Medium Bi-Pin)
• Wattage: 12W
• Voltage: 120-277V & 347V
• Light Output: 2,100 Lumens
• Equivalent Wattage: 32W Fluorescent
• Color Temperature: 5000K (Daylight White)
• Color Rendering Index (CRI): 82
• Dimmable: Yes (0-10V, down to 10%)
• Lifespan: 50,000 Hours
• Operating Temperature Range: -20°C to +50°C (-4°F to 113°F)
• Glass Type: Frosted Soft Glass
• Power Factor: >0.90
• Total Harmonic Distortion (THD): <10%
• UPC Code: 0046135412776

Certifications & Compliance

• cULus 1993 Certified – Meets North American safety standards
• ETL Listed – Approved for safe operation in commercial applications
• RoHS Compliant – Free of hazardous materials (lead and mercury)
• FCC Title 47 CFR, Part 18 – Non-consumer compliant
• NSF Listed – NSF/ANSI Standard 2 – Food Equipment Certified
• DLC Standard Listed – Eligible for rebates in applicable areas

Installation & Usage Notes

• Compatible with instant start and select programmed rapid start electronic T8 ballasts
• Not for use with magnetic ballasts
• Suitable for dry and damp locations (cannot come in direct contact with water)
• Can be used in open and enclosed fixtures
• Maximizes energy savings when used with occupancy sensors

Energy Savings Comparison

Manufacturer Warranty

• 5-Year Limited Warranty – Backed by Sylvania’s trusted quality assurance program