Sun System Grow Light Ballast Unit

Sun System horticultural grow light and required ballast unit. Both were tested and are in good working condition - bulb works -1000 watt. Extra bulb included - unsure of its condition. Just the bulb in this unit retails for around $80.00. Light fixture: 25"x 8"x 24". One piece of edging is missing, so glass can slide out - still usable or could be fixed. *Also, bulb is 600 watt, not 1000.