The size of bayonet light bulb: Height 135mm, Width 48mm. Energe saving bulb 2700k 660 lumens. No warm up time to full brightness. Energy saving light bulbs, 11 watt equivalent to 60 watt, saving over 90% on electricity bill. Light bulbs bayonet, 2 pin, BC/ B22/ Bayonet specialist cap. 3 Pack CFL Low Energy Light Bulbs 11W=60W, Energy Saving Light Bulbs Bayonet 11W, 2 Pin, Warm White 2700K, 660 Lumens, B22 Bayonet Cap
