the Christmas grow

well it has been a rough week. I started the week by finding out i have overwatered and the plants weren't looking great. made the decision to keep them and see it through. they have healed well though and are bouncing back nicely after allowing the soil to dry out. but just as the plants are starting to look better i wake up on the day i post this to see my grow light has died. any recommendations on what to get to replace it? right now i have my spare burple light on it but want a little more power.