The Kingbright RTC-31 is a one-part clip suitable for mounting Kingbright 3mm LEDs in panels of up to 3mm. * Fits hole diameter of 4.4mm * Panel thickness up to 3mm * For use with LED lamps Note: Designed to fit Kingbright LEDs - may not fit other manufacturers LEDs. Rapid Electronics are Kingbright's leading UK distributor of LEDs. To find out more about the full range of Kingbright products please visit Rapid's Kingbright page Rapid Electronics are Kingbright''s leading UK distributor of LEDs. To find out more about the full range of Kingbright products please visit Rapid''s Kingbright page.