BELL 60066 4 watt ES-E27mm Red Coloured LED Filament GLS Bulb. These Red coloured light bulbs offer fantastic light output and offer long life hour, whilst looking stylish. Ideal for festoon light fittings, the clear glass bulb has an amber LED filament. Perfect for bars, restaurants, show rooms and around the home. Standard ES-E27mm screw cap. 80+ CRI rating.