How should I price these?

[boacvh]

Hi. Looking for some advice. Recently switched my lights to Kessils and so I have a couple Current USA 4227 Orbit Marine IC PRO LED Reef Aquarium Dual Light System with Wireless Loop, 48" that I want to sell. Used them for approximately 6 months and are in great condition. Would be together with two Current USA 4194 XW Orbit LED Adjustable Tank Mount Bracket, 15"-24", Black.
Can you give me some advice as to how much I should expect for these lights?

Thanks!