1) acrylic front cover and nice coating aluminum back cover
2) besides the protecting housing, acrylic cover works also as LED lens
3) 90-265 V AC working voltage
4) run with or without existing ballast/sarter from conventional fluorescent
5) engineered to the best level of light output maintainance
6) using super bright SMD LEDs, high output up to 1944 lumens
7) lifespan over 50, 000 hours and standard warranty 3 years
8) energy saves more than 70% comparing conventional 40W FTL
9) no hazardous materials, fully RoHs compliant
10) no flickering or RF interference
11) 0.6m, 1.2m and 1.5m available