The newest warning lamps are divided into two series: W217 (shorter) and W218 (longer). There are three choices of colour: blue, red or amber. Both series of lamps are available in two variants: an economical version, one program with double flash - W217 ECO and W218 ECO, and a two program version - W217 and W218. The dual-program lamp can be changed to a single or double flash, and multiple lamps can be synchronized. This means that the connected lamps can flash together or in alternating phases. Every lamp is sold with two pads of different thickness, one rubber (lower) and one plastic (higher), and can be mounted on any angle on the vertical plane. Series W217 and W218 fulfil all approval requirements and have the protection rating IP6K9K. The individual lamp components are made from the highest quality materials. The lamp lens is made of durable polycarbonate and the lamp body is double-corrosion-protected. In addition, the lamps can operate in temperatures between -40°C and +50°C.