This document specifies that black is the only color that can be used for the insulator at the bottom of the base of T-1 and T-1 \u00be Flanged Base lamps.
| SAE International | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | AS4156C |
| Product Name | Color-Coded Incandescent Flange Base T-1 and T-1 3/4 Lamps for Voltage Identification |