Optica Optica is made of oxidized aluminum. The light source is a 1W LED lamp. This makes Optica ideal for lighting smaller bushes. The lamp is equipped with a 0.7 meter long cable with quick connection for easy pairing with the rest of the system. A complete system - All lamps are compatible with each other Combine the desired lamps from LightsOn and choose a transformer that can handle the full effect. For a complete system, select the lamps you want and possibly extension cables, branch connections, etc. Then add up the lamps' total number of watts and choose a transformer that at least corresponds to the lamps' total. Supplied without a transformer To get a complete system, a transformer is needed. Tip: Many people choose to add the article Light sensor that automatically turns on the lighting in the evening. - Supplied without transformer - 1W LED (CREE XP) - 90 Lumen - Warm white light (3000K) - Diffusion angle: 15° - IP44 - Oxidized aluminum - Ambient temperature: -20°C - +60°C - Relative humidity: 0 - 95% - CE marked New connectors< /strong> LED Garden Plug & Play has due to updated EU directives received new 12V contacts on the cables (see product images). For old systems that are supplemented with new ones, there are transitions.