If the bulb does not light up, turn off the power supply and check that the bulb is properly seated in the sockets. You may need to gently push the bulb further into the sockets to ensure a good connection.

If the end connectors of the light fixture are dirty, clean them with a soft cloth to ensure a good connection with the new bulb.

These signs are awesome they look great above our enclosures and so well made Our son wants to collect them all Thanks guys

Check the end connectors of the light fixture to ensure that they are compatible with the G13 tube light bulb. The G13 tube light bulb has two pins at each end that fit into the sockets of the light fixture.

Bought the 'Spider zone' roadsign and the quality is beyond amazing. It is so good and very cheap as well. Will definitely buy more when I get more phasmids and arachnids.

Take the new G13 tube light bulb and align the pins on each end with the sockets of the light fixture. Gently push the bulb into the sockets until it clicks into place.