... temperature: 2700K-6500K high quality,low price Energy Saving Lamp 23W SpiralWattage: 23wVoltage: 220VFrequency: 50~60HzLamp Base: ... 2U, 3U, 4U, full spiral, half spiral, bulb, candle, globe, lotus etc. TubeWatts (W)Lamp baseLumens (lm)MEASUREMENTS (mm ... spiral20WE271151149±4 7449591223WE271370158±474495912Advantage of Delta Energy Saving lamp:1.) Certificate:CE.ROHS2.) High luminous efficiency,no ...