Can�t Fit into One Our Standard Switch Panels? Then make your own with these modular interlocking LED individual modular switches housings. Use them on their own or snap them together to make panels by choosing two end Housings and as many middle housings as you require. Great for those tight spaces or just not sure how many switches you will need at this stage? Add switches as you add accessories, electronics, lights, pumps etc just snap on another switch and it still will look like they where factory fitted! Retail Blister Pack.