Peterson Manufacturing recently released its new line of LED S/T/T 4″ round model lights under its Piranha brand. The 817-3 grommet-mount and 818-3 flange-mount models both contain seven diodes and are designed with an operating range of 9-16 volts. They feature skirted weld joints for added protection against moisture and meet FMVSS 108 requirements. Top positioning is not required. The grommet versions use 426-18 rubber grommets.