"• High quality replacement lamp. Available in 5 different wattages. Suitable for JBL AquaCristal UV-C and all other UV-C devices using the same connector. • 5, 9 and 11 watt models equipped with G23 connector (compatible with all former JBL UV-C devices). • 18 and 36 watt models equipped with 2G11 connector. • Avoid touching the UV-C lamps with bare hands as this results in a reduced lifetime of the lamp. "