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