We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 1 5/8 in U-Bend Leg Spacing - Fluorescent U-Bend Lamps (No UL Type)
PHILIPSFluorescent U-Bend Lamps (No UL Type)

PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 1 5/8 in U-Bend Leg Spacing

The PHILIPS U-Shaped Fluorescent Bulb: T8 is a fluorescent U-bend lamp with bulb designation FB31T8/TL841/ALTO. It features a medium bi-pin (G13) base, 1 5/8 in U-bend leg spacing, 31 W wattage, and a color…

SKU 3G-OTH-388166

Also listed as: FB31T8TL841ALTO151 · FB31T8 TL841 ALTO 15 1 · FB31T8-TL841-ALTO-15-1

Brand
PHILIPS
Item
U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin
Category
Fluorescent U-Bend Lamps (No UL Type)
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

PHILIPS
Manufacturer Part Number
FB31T8/TL841/ALTO 15/1
Type
Medium Bi-Pin (G13)
Watt
31 W
Bulb Designation
FB31T8/TL841/ALTO
Color Temperature
4100K
Shatter-Resistant
No
U-Bend Leg Spacing
1 5/8 in

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

PHILIPS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The PHILIPS U-Shaped Fluorescent Bulb: T8 is a fluorescent U-bend lamp with bulb designation FB31T8/TL841/ALTO. It features a medium bi-pin (G13) base, 1 5/8 in U-bend leg spacing, 31 W wattage, and a color temperature of 4100K. This lamp is not shatter-resistant.

Frequently Asked Questions

What is the PHILIPS FB31T8/TL841/ALTO U-shaped fluorescent bulb used for?

This PHILIPS T8 U-bend lamp is designed for commercial and industrial lighting fixtures that require a compact, space-saving fluorescent source. Common applications include office troffers, retail displays, and linear grid ceilings where a 1 5/8 in leg-spacing U-bend configuration is specified.

What are the specifications of the PHILIPS FB31T8/TL841/ALTO U-bend lamp?

The PHILIPS FB31T8/TL841/ALTO is a 31 W T8 fluorescent U-bend lamp with a medium bi-pin (G13) base, 1 5/8 in U-bend leg spacing, and a color temperature of 4100K. It is not shatter-resistant. The manufacturer part number is FB31T8/TL841/ALTO 15/1.

Where to buy PHILIPS FB31T8/TL841/ALTO U-bend lamps worldwide?

3G Electric supplies the PHILIPS FB31T8/TL841/ALTO U-bend lamp worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your facility. Contact us for availability and lead time on this PHILIPS T8 fluorescent lamp.

How to select the correct PHILIPS U-bend fluorescent lamp for my fixture?

Verify your fixture requires a T8 U-bend lamp with a medium bi-pin (G13) base and 1 5/8 in leg spacing. The PHILIPS FB31T8/TL841/ALTO operates at 31 W and 4100K. Always match the lamp wattage and base type to the ballast and socket specifications in your existing luminaire.

Used in

Common applications for PHILIPS
Commercial office lighting — Philips EvoKit CLKE 2x4 42L 30W 835 UNV 0-10 P1 retrofit kit for 2x4 ft troffer replacement
Industrial high-bay lighting — Philips 45CC/LED/830/LS EX39 G3 BB 3/1 LED corncob lamp for HID replacement in warehouses
Retail accent lighting — Philips CDM20/TC/830 Elite ceramic metal halide lamp for track or display fixtures
General area lighting — Philips PL-C 18W/835/2P/ALTO CFL for downlights and wall sconces in corridors
High-output flood lighting — Philips MH1000/U metal halide lamp for stadium or parking lot fixtures
Residential or commercial downlighting — Philips 15BR30/PER/927/P/E26/WG/HO/T20-4/1PF BR30 LED for recessed cans

PHILIPS Products

3G Electric supplies PHILIPS fluorescent u-bend lamps (no ul type). We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
PHILIPS U-Shaped LED Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 15.5 W Watt, 4000K (MPN 15.5T8-6U/COR/24-840/MF21/G 10/1)
PHILIPS
PHILIPS U-Shaped LED Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 15.5 W Watt, 4000K (MPN 15.5T8-6U/COR/24-840/MF21/G 10/1)
PHILIPS U-Shaped LED Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 15.5 W Watt, 3500K (MPN 15.5T8-6U/COR/24-835/MF20/G 10/1)
PHILIPS
PHILIPS U-Shaped LED Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 15.5 W Watt, 3500K (MPN 15.5T8-6U/COR/24-835/MF20/G 10/1)
PHILIPS U-Shaped LED Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 15.5 W Watt, 5000K (MPN 15.5T8-6U/COR/24-850/MF21/G 10/1)
PHILIPS
PHILIPS U-Shaped LED Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 15.5 W Watt, 5000K (MPN 15.5T8-6U/COR/24-850/MF21/G 10/1)
PHILIPS U-Shaped LED Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 15.5 W Watt, 3000K (MPN 15.5T8-6U/COR/24-830/MF20/G 10/1)
PHILIPS
PHILIPS U-Shaped LED Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 15.5 W Watt, 3000K (MPN 15.5T8-6U/COR/24-830/MF20/G 10/1)

More from PHILIPS

View all PHILIPS parts
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 32 W Watt (MPN FB32T8/TL841/6 ALTO 20PK)
PHILIPS
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 32 W Watt (MPN FB32T8/TL841/6 ALTO 20PK)
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 1 5/8 in U-Bend Leg Spacing, 31 W Watt (MPN FB31T8/TL830/ALTO 15/1)
PHILIPS
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 1 5/8 in U-Bend Leg Spacing, 31 W Watt (MPN FB31T8/TL830/ALTO 15/1)
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 32 W Watt (MPN FB32T8/TL830/6 ALTO 20PK)
PHILIPS
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 32 W Watt (MPN FB32T8/TL830/6 ALTO 20PK)
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 32 W Watt (MPN FB32T8/TL835/6 ALTO 20PK)
PHILIPS
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 32 W Watt (MPN FB32T8/TL835/6 ALTO 20PK)
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 1 5/8 in U-Bend Leg Spacing, 31 W Watt (MPN FB31T8/TL835/ALTO 15/1)
PHILIPS
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 1 5/8 in U-Bend Leg Spacing, 31 W Watt (MPN FB31T8/TL835/ALTO 15/1)
PHILIPS U-Shaped Fluorescent Bulb: T12, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 40 W Watt (MPN FB40/T12/CW Supreme/6 12PK)
PHILIPS
PHILIPS U-Shaped Fluorescent Bulb: T12, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 40 W Watt (MPN FB40/T12/CW Supreme/6 12PK)
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 25 W Watt (MPN FB32T8/ADV841/6/XEW/ALTO 25W)
PHILIPS
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 25 W Watt (MPN FB32T8/ADV841/6/XEW/ALTO 25W)
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 32 W Watt (MPN FB32T8/TL850/6 ALTO 20PK)
PHILIPS
PHILIPS U-Shaped Fluorescent Bulb: T8, Medium Bi-Pin (G13), 6 in U-Bend Leg Spacing, 32 W Watt (MPN FB32T8/TL850/6 ALTO 20PK)