40W rapid start fluorescent light bulbs, set of 10, 3200 lumens, 5000K color temperature, average lifespan of 12,000 hours. - Model Name: FLR40S EX-N/M - Wattage: 40W - Quantity: Set of 10 - Color Temperature: 5000K - Luminous Flux: 3200 lumens - Average Lifespan: 12,000 hours - Overall Length: 1198mm - Diameter: 32.5mm - Shape: Rapid start type Thank you for viewing. I tried using about 3 of these at home, but they didn't fit my home's fluorescent lights, so I seem to have purchased them by mistake, and I am listing them for sale. Those 3 bulbs are clearly packaged.