The Box of 20 4W T45 E27 Dimmable Tory Filament LED Bulbs. Given its similarity to the old carbon filament bulbs, it allows us to create cosy atmospheres with a touch of 'retro', without giving up a saving in consumption of 80%. This bulb is equivalent to traditional bulbs of up to 25W of power. It is presented in transparent glass and is focused on indoor lighting, such as homes and premises. Due to its high quality, it has a very high Chromatic Reproduction Index that shows the real colour in a very natural way. The filament is made of synthetic sapphire. Dimmable (adjustable).