Energy Saving

Question 1

What's the proper way to dispose of old light bulbs?

Accepted Answer

To responsibly dispose of your old bulbs and find out which ones require special handling, read our How to Dispose of Light Bulbs guide. We want to help you stay safe and keep the environment healthy.

Question 2

I'm looking for a tubular bulb for my fixture, and I see "T8," "T5," and "T12" listed. What do these "T" numbers mean, and how do they differ?

Accepted Answer

The "T" in these codes indicates a tubular shape, often used for fluorescent or LED tubes, and the number represents the tube diameter in eighths of an inch; thus, a T8 bulb is 1 inch in diameter, while a T5 bulb is 5/8 of an inch, and a T12 is 12/8 of an inch (or 1.5 inches), with the smaller diameter often correlating to newer, more energy-efficient models. Choose the correct number that matches the socket in your fixture.

Question 3

I'm planning a party. Is it safe to use colored light bulbs in regular fixtures, or are there specific concerns?

Accepted Answer

Colored light bulbs are safe in standard light fixtures, adding a fun and festive atmosphere to any event. Just match the bulb base type and wattage to your fixtures.

Question 4

What are twist & lock and bayonet bases, and how are they different from screw-in bases?

Accepted Answer

Twist & lock bases, often seen in recessed lighting and some outdoor fixtures, don't screw in but instead lock into place by inserting and turning. bayonet bases, recognized by their cylindrical shape and side pins, are commonly used in older fixtures and some specialty appliances. They don't use the traditional threaded screw-in design, so check the fixture before purchase.

Question 5

I want a light that can change from warm to cool throughout the day. Is that possible?

Accepted Answer

Yes, you can achieve this with color changing or adjustable white light bulbs. These bulbs allow you to customize the color temperature, ranging from warm tones to cooler, brighter ones, letting you adjust the lighting to fit your mood or activity.

Question 6

I want to upgrade to LED bulbs, but I'm unsure if the base will fit. What common base types might I encounter, and what should I consider?

Accepted Answer

Common bases for LED upgrades include the screw-in E26 (standard medium base), smaller E12 (candelabra), and bi-pin bases like GU10 or G4. When upgrading, always match your existing base code; however, some LEDs, such as the E26, are offered in other base types, such as the GU10, for use in many common fixtures. Be sure to double-check to ensure you select the correct base.

Fluorescent Light Bulbs

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Department

Review Rating

Brand

Feit Electric

Sunlite

Mydepot

Price

$0 - $10

$10 - $20

$20 - $30

$30 - $40

$40 - $50

$50 - $100

$100 - $150

$150 - $200

Lighting Technology

LED

CFL

Fluorescent

Incandescent

Halogen

Bulb Shape

Light Bulb Features

Enclosed Fixture Rated

Plug and Play

Light Bulb Shape Code

T8

T9

T5

T12

T11

T40

T4

Light Bulb Base Type

4-Pin

Medium Bi-Pin

Miniature Bi-Pin

Number of Bulbs Included

1

2

6

10

12

24

25

Bulb Material

Glass

Wattage Equivalence

6 Watt

8 Watt

15 Watt

22 Watt

25 Watt

30 Watt

32 Watt

40 Watt

200 Watt

225 Watt

Rated

Dry Rated (Indoor)

Dry Rated

Wet Rated (Indoor/Outdoor)

Bulb Finish

Frosted

Clear

Bulb Color

White

Light Bulb Base Code

G13

G10Q

G5

2G11

GX10Q-4

GY8

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