To all of our dimming, pulse and multi use thermostats we fit an extra layer of protection. In the form of a fuse to protect the thermostat from surges that can be caused by the heat bulb or a worn out bulb holder. The fuse pack contains 5 of these special fuses which are 5 amp FF Ultra Fast fuses.
If you find your thermostat is blowing fuses on a regular basis please check that your bulb holder is not worn out. The metal inside the bulb holder can become weak over time which leads to the top contact being pushed away from the tip of the bulb. This can cause arcing.
Please note FF Ultra Fast fuses must be used to maintain the warranty on your thermostat.
Can be used with Evo, Evo Lite, Prime, B1, B1HT,B2, B2HT, OLED Dimmer and OLED Pulse