Power Sentry(R) LED Emergency Driver LED Bulb Type Input Voltage 120 to 277V AC Number of Bulbs Supported 2 Bulb Watts 10 W 15 W Max Bulb Watts 15 W Initial Lumens Fixture Dependent 90 min Emergency Illumination Time CA Title 20 Compliant Yes 10 1/2 in Length 2 3/8 in Width 1 3/16 in Height Standard Profile Steel Housing Material