Compatible with hp procurve j9450a (1810g-24) switch?

No, this 10 Gigabit SFP+ LC Multi-mode Transceiver is not compatible with HP procurve j9450a (1810g-24) switch. You should buy the 1000BASE-SX through https://store.10gtek.com/1-25g-sfp-1000base-sx-850nm-550-meter-sfp-sfp-ge-s-hp/p-8813