... efficiency dc 36v energy saving lamp1,Votalge: DC 36v2, Watt: 5w to 30w3, Shape: U , half spiral, full spiral, lotus,candle, ... lamp base, more elegant and tight8,Fliker free instant strat 9,Environmental protection 10, no flash, no noise11,Low light decline, low energy ... ,workshop etc.12,Specifications:Diameter of TubeT2(Φ)/T3(Φ)/T4(Φ)/Φ14.5/Φ17Rending IndexRa≥80Color Temperature2700K/4100K/5000k/ ...