... White), 6150-6500K(Cool White) typical Input voltageInternal Driver, 100-277VAC, 50/60Hz; External Driver is also available Power factor > 0.95 ... efficiency: 80-100 lumens per watt typical) Fittingsno base(External Driver) or E27/E26/B22 Base is also available(internal ... set of lamps)IES, MSDS report, CE, RoHS, ETL photometric data available on request.Attention: Switch Cover could be customized upon ...