The Sylvania CFL Bulb, model CF18DD/841/ECO (20678/21111), is specified at 18W, 4100K. In a compatible compact fluorescent downlight or other CFL fitting, this model should match the existing base and lamp envelope rather than only the stated wattage.
The GX23-2 base must match the exact keyed lampholder; a different pin arrangement is not interchangeable. Choose 4100K when that colour matches neighbouring lights in the lit area; this choice does not by itself establish the required brightness. The fitting’s ballast must be rated for this model and its lamp wattage.
Buying tip: Check the existing socket for the GX23-2 base and compare the available clearance with the lamp dimensions.
| Brands | Sylvania |
|---|---|
| Color Temperature | 4100K |
| CRI | 82 |
| Life Hours | 15,000 |
| Wattage | 18 |
| Lumens | 1200 |
| Product | Compact Fluorescent Lamp |
| Color | Natural White |
| MPN ( Part No.) | CF18DD/841/ECO (20678/21111) |
| Base Type | GX23-2 |
| Pack Quantity | 50 |