4 watt dimmable LED filament GLS style lamps Energy efficient LED lamp solutions Opal polycarbonate diffuser High efficiency LED filament and colour rendering CRI > 80 Integral trailing edge dimmable LED driver, BC or E27 lamp bases 320° beam angle Colour temperature 2700K, 5000K 1:1 size to traditional GLS lamp, dimmable, Suits most GLS lamp fittings Datasheet here. Model No. Description Input Voltage Power Lumens CCT CRI Beam Angle Dimmable Dimensions Base Type LG5/27B22D LED LAMP 4W BC WW 450lm DIM. 240 4 450 2700 80 320 YES 105(L) x 60(W) B22 LG5/27E27D LED LAMP 4W ES WW 450lm DIM. 240 4 450 2700 80 320 YES 106(L) x 60(W) E27 LG5/50B22D LED LAMP 4W BC NDL 500lm DIM. 240 4 500 5000 80 320 YES 105(L) x 60(W) B22 LG5/50E27D LED LAMP 4W ES NDL 500lm DIM. 240 4 500 5000 80 320 YES 106(L) x 60(W) E27