I have 10 light bulbs on this listing sold as one pack The Philips Master PL-C 4P 18 W/840 lamp bulbs are energy-efficient, long-lasting, and provide cool white light with a colour temperature of 4000K. These fluorescent bulbs have a 4-pin connector and a G24q-2 bulb shape code, making them suitable for various lighting applications. With a voltage of 240V and a bulb wattage of 18W, these lamps offer a lumens output of 1200 and a bulb life of 10,000-14,999 hours. Ideal for energy saving and efficient lighting solutions, these white (cool) finished bulb sticks are a reliable choice for home and commercial use.