... enviromental, no UV radiation 4.high brightle 18w t10 led fluorescent tube 1.2 years warranty 2.saving>50% energy 3. ... enviromental, no UV radiation 4.high brightle 18w t10 led fluorescent tube Specifications: Material: 1/2 alminum ,1/2 light diffusing ... no flickering,instant start,save energy Real replacement for conventional fluorescent tube,long lifetime No need for starter and ballasts No mercury ...