These Ledvance brand, 13watt, 4 pin, G24Q-1 cap type, PLC double turn fluorescents with a colour temperature of 4000k, produce a crisp cool white light. They are suitable in both commercial and domestic luminaires. This product has an 870 lumen output and long average rated life of 10000 hours.
Manufacturer part number: 4050300017594.
Manufacturer product name: DULUX D/E 13 W/840.