This is a Single Light Block, with integral LED base and 1-wire electrical connection.

• · This Harmony ZB, single light block for test light function has 1 connecting wire.
• · It is supplied with 12V AC/DC.
• · It is compatible with Harmony XB4 and XB5.
• · This single light block allows fast and easy replacement and configuration of your signaling units for light testing purpose.
• · It protects operators from unexpected contact with live circuits thanks to its IP20 protection index.
• · Its wide range of operating temperatures from -25°C to 70°C allows versatility in usage of product.