1) Acrylic front cover and nice polishing aluminum back cover

2) Besides the protecting housing, acrylic cover works also as LED lens

3) 85-265 V AC working voltage, 50 / 60 Hz

4) Beam angle: 120 degrees

5) Run with or without existing ballast/sarter from conventional fluorescent

6) Engineered to the best level of light output maintainance

7) Lifespan over 50, 000 hours and standard warranty 3 years

8) No flickering or RF interference