Features: Waterproof signals indicators with durability metal housing ensures reliable visibility in humid environment, compatible for 220V for versatilitys device integration. 6/8/10/12mm compactly design features corrosion resistant metal construction and stable wire connection for uninterrupted signals transmission. Essential for industrial maintenance technicians, electronic engineers, automation designers, and DIY enthusiasts seeking robust equipment components. Optimized for industrial control panel, machinery status displays, home appliance indicators, and security system installations requiring waterproof durability. High intensity LED combined with IP65 waterproof rating guarantees year round operation under extreme humidity/vibration conditions. Specifications: Component:Metal Multiple Size As Picture Show; Option Type:6mm 220V Sign Light(Green),6mm 220V Sign Light(Red),10mm 220V Sign Light(Green),10mm 220V Sign Light(Red),12mm 220V Sign Light(Green),12mm 220V Sign Light(Red),8mm 220V Sign Light(Green),8mm 220V Sign Light(Red), Package Includes: 1pc Sign Light note: Please allow 1-10mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.