For areas with low ambient lighting, the Illuminated Spy Proof Housing provides cool blue illumination and serves to limit the view of an unwelcome onlooker. Available exclusively for the Essex 12 pad 3×4 Keypad or Hand-E-Tap® Access Switch, the Illuminated Spy Proof Housing requires a 5 or 12-volt independent power supply. (Power supply not included) The Stainless Steel Spyproof Housing is also available in a nonilluminated version.