... 1.Integrated aluminum alloy materials. 2.Higher lumens. 3.Easy installation HN-T5-36 2*36W 220V 2100-3700 872 ... free,saving more energy.2.Using phosphortubelight,high light efficiency,high CRI,high energy saving rate.3. ... 0.95,THD<10-30%.Comparing with T5 single tube series, light efficiency is improved 2 times.5.Color ... .Using high efficiency ballast,10000 hours lifetime. T5 2*36W lamp fixture