Skip to content
Super Arbor
1 / 3

Philips · Lighting

21-Watt 34 in. Linear T5 Fluorescent Tube Light Bulb Bright White

G5 base

$197.14 each

Orders start at $399. Combine any items to reach it.

Item Weight: 0.233
Quantity
1 item
$197.14
Standard delivery
$49.99 per order
Sales tax
Added at checkout

All orders are subject to approval.

You're not charged until your order is approved and ready to ship. Cancel free before then.

Standard delivery$49.99

Per order, added in your cart. We deliver to the 48 contiguous states.

Availability confirmed by the desk at approval, with your delivery date. Shipping policy · Returns

Philips · Lighting

Details & specifications.

From the maker · Philips’s description

The Philips 21-Watt Bright White Linear Fluorescent Light Bulb (F21T5/830) casts a crips, bright white light that can last up to 20,000-hours. You can use this bulb in almost any room inside of your home or business for general light needs or in the kitchen or bathroom. This bulb has a T5 shape with a bi-pin base.

  • Brightness: 2100 Lumens
  • Estimated yearly energy cost: $2.53 (Based on 3 hrs/day, 11c/kWh. cost depend on rates and use)
  • Lasts up to 18.2 years (based on 3 hours/day)
  • Light appearance: 3000K (Bright White)
  • Energy used: 21-Watt
  • Lumens per watt: 100
  • T5 bulb shape, miniature bi-pin base
  • Contains mercury: yes (for more info on cleanup and safe disposal, visit: epa.gov/cfl)
  • Ideal for residential use in kitchens and bathrooms as well as for commercial use in general, decorative and architectural lighting
  • Contains mercury: yes (for more info on clean-up and safe disposal, visit: epa.gov/cfl)
  • Based on availability, color temperature on packaging may vary between soft white and bright white, but all lamps will provide the same color temperature output of 3000 Kelvins.
SKU
310333339
Base
G5
Colour temperature
Bright White
Brand
Philips
Item Weight
0.233

As listed for this product. Some values differ by option.

Light Bulb Base Type
Bi-Pin
Indoor/Outdoor
Indoor
Color Rendering Index (CRI)
85
Actual Color Temperature (K)
3000
Average Life (hours)
20000
Bulb Type
General Purpose
Wattage (Watts)
21
Lumens (Brightness)
2100
Light Bulb Features
No additional features
Light Bulb Shape Code
T5
Lighting Technology
Fluorescent
Number of Bulbs Included
1
Bulb Shape
Linear
Bulb Construction
Glass
Bulb Diameter (In.)
0.625
Product Length (in.)
34
Approximate Light Bulb Length
3 ft.
Manufacturer Warranty
Yes, 18.3 years. Please see package for details.

Specifications are provided by the manufacturer. Brand names are trademarks of their owners.

Guide

Size, base and colour

  1. 1

    Chandelier size

    A common rule of thumb: the room length plus width in feet gives the diameter in inches. A 12 × 14 ft dining room takes about 26 in.

  2. 2

    Bulb base

    E26 is the standard medium base; E12 candelabra is the small base on many chandeliers and sconces.

  3. 3

    Colour temperature

    2700K is the warm light of a classic bulb, 3000K a little whiter, 4000K neutral and 5000K daylight.