CF57DT/E/IN/830 Compact Fluorescent Light Bulb - Description: DULUX 57W triple compact fluroescent amalgam lamp with 4-pin base, 3000K color temperature, 82 CRI, for use with electronic and dimming ballasts Abbrev. With Packaging Info. CF57DTEIN830 50/CS 1/SKU - Average Rated Life (hr) 12000 - Base GX24Q-5 - Bulb T4 - Color Rendering Index (CRI) 82 - Color Temperature/CCT (K) 3000 - Family Brand Name DuluxÌâå T/E - Initial Lumens at 25C 4300 - Mean Lumens at 25C 3698 - Maximum Overall Length - MOL (in) 7.76 - Maximum Overall Length - MOL (mm) 197 - NEMA Generic Designation (current) CFTR57W/GX24Q/830 - NEMA Generic Designation (old) CFM57W/GX24Q/830 - Nominal Wattage (W) 57.00 - Manufacturer - Sylvania CF57DT/E/IN/830 Compact Fluorescent Light Bulb Part number - 20896