Product features:Surface-mounted installation 2 bell buttons modern, attractive design illuminated (bulb included) easy installation with clamp connection (max. 0.8 mm) weatherproof plastic housing durable special contacts with precious metal coatingTechnical specifications:Temperature range: -20°C to +50°C max. 12V~/= (AC/DC) 0.005A-1.5A 90 x 90 x 18.5 mmsilver matt/black (RAL 9005) precious metal coatingInstallation instructions:Note: