Since the NIGHTSWITCH™ Photocontrol is designed to last as long or longer than the fixture itself, it needs to be able to handle multiple surge events over a long time frame. The first line of defense is a high capacity Metal Oxide Varistor (MOV) which can handle high surge events multiple times. MOV’s lose some capacity each time they absorb energy. Two high capacity MOV’s are used to ensure the longest life possible.
The C136.10-2017 has three catagories for surge protection:
• Enhanced (10kv/5ka)
• Extreme ( 20kv/10ka)
The NIGHTSWITCH™ passes the Extreme Test Requirements.