1. Large tube shape decorative vintage led bulb, size is dia.75 x 310mm Length, two end is smaller than body, clean and smooth surface. Strong and hard high borosilicate glass, safe packing, no worry of breaking.
2. 12pcs 68mm length sapphire substrate led filament, 12w, can reach 1500lm at 2700K CRI>85. The energy class is A++ for this high wattage vintage led bulb. For 2200K, the lumen is about 1200lm. Dimmable.
3. Thought, it is a large size tube vintage led bulb, the lamp base is E27, it is medium size lamp base.