G8 2.5W vs E12 5.0W T6: Choosing a Small Fixture Bulb

The base decides first, brightness second

The G8 2.5W and E12 5.0W T6 are both 120V EmeryAllen retrofit lamps, but they are not interchangeable. The G8 2.5W uses a G8 base and is intended for most 120V G8 fixtures. The E12 5.0W T6 uses an E12 base and is intended for most 120V E12 fixtures. If your socket is G8, the E12 lamp will not fit, and vice versa.

Once the base matches, the real decision is light output. The G8 2.5W offers similar output to a 120V 20W incandescent at 250lm. The E12 5.0W T6 offers similar output to a 120V 60W incandescent at 550lm. That is a meaningful jump, so match the lamp to the fixture's role rather than assuming lower wattage is always the safer choice.

What each retrofit lamp actually delivers

• G8 2.5W: G8 2.5W: 120V EmeryAllen retrofit lamp for most 120V G8 fixtures, with similar light output to a 120V 20W incandescent (250lm). This is the lower-output option in the comparison, suited to fixtures where 250lm is enough rather than a direct swap for a brighter incandescent.

  

• E12 5.0W T6: E12 5.0W T6: 120V EmeryAllen retrofit lamp for most 120V E12 fixtures, with similar light output to a 120V 60W incandescent (550lm). This is the brighter option, but only relevant if your fixture takes an E12 base.

  

Color temperature: the same two choices on both lamps

Both the G8 2.5W and E12 5.0W T6 are offered in 2700K and 3000K. The supplied records do not describe a visual difference between these color temperatures, so treat the choice as a preference to confirm against the room's existing lighting rather than a performance difference documented here. Neither lamp's record confirms dimming compatibility, so do not assume either will dim smoothly with every control.

G8 2.5W vs E12 5.0W T6 at a glance

• Base type: G8 2.5W: G8 base for most 120V G8 fixtures. E12 5.0W T6: E12 base for most 120V E12 fixtures. Check the socket before anything else.
• Light output: G8 2.5W: 250lm, similar to a 120V 20W incandescent. E12 5.0W T6: 550lm, similar to a 120V 60W incandescent.
• Color temperature options: Both are available in 2700K and 3000K.
• Purchase terms: Both are drop-shipped directly from Emery Allen and are final sale, with no returns or exchanges.
• Not confirmed in supplied records: Dimming compatibility and exact physical dimensions are not stated for either lamp. Confirm these with the fixture or manufacturer before ordering if they affect your decision.

Which small fixture bulb fits your situation

• Choose the G8 2.5W if your fixture has a G8 socket: It is the only one of the two that fits a G8 fixture, and its 250lm output is the lower of the pair.
• Choose the E12 5.0W T6 if your fixture has an E12 socket and needs more light: At 550lm it is the brighter option, but it will not fit a G8 socket.
• Do not choose by wattage alone: The 5.0W lamp produces more than twice the lumens of the 2.5W lamp. A lower wattage does not mean a dimmer result in every fixture, so base fit and intended brightness should drive the decision.

Final-sale bulbs: what to confirm before you order

Both lamps are drop-shipped directly from Emery Allen and are final sale, with no returns or exchanges. That makes pre-purchase checks more important than usual. Confirm the socket type, the color temperature you want, and whether dimming matters for your fixture. The supplied records do not list dimming capability or exact dimensions, so if either is critical, verify it with the fixture documentation or the manufacturer before buying. Neither lamp's record includes installation or operating instructions beyond the compatibility statements above.