Product Description: Output constant voltage Built-in PFC function Protections: short circuit/ over voltage/ over heat Cooling by free air convection Flicker-free Work with leading edge & trailing edge triac dimmers Class 2, Class P, Type HL, CE, UL, FCC compliant PWM output, does not change the color index Metal housing Suitable for dry location Strong compatibility, flicker-free dimming Suitable for LED lighting and moving sign applications Compliance to worldwide safety regulations for lightings. Compatible with Forward phase, Reverse phase, Triac, MLV, ELV Dimmers 3 years warranty Specifications PF: >0.97 Model: LB55450;LB55470;LB55483 Output: constant voltage Weight: 2.9 lb Current: 10 A;5 A Dimming: Dimmable;Non-Dimmable Voltage: 12V;24V Wattage: 120W Dimensions: 8.66” x 3.6” x 1.61” Efficiency: >87% Input Voltage: AC 100-277V Load Regulation: 1±;2±