I don't have experience with the 160, but i did have experience with the H80 then made the jump to the H380. The H80 was too small for my fuge area, and needed a higher wattage light which is why i went with the H380 ans skipped the H160 as I didn't want to have to buy the H160, and then buy the H380.
I did have my H380 crap out on me one day as it would turn on fine and within 1 minute or less the light spectrum would change color, and the light would get real dim. I took the light apart and with a paint brush i was able to take out salt creep build up and what ever else got caught in the fan (Looked like someone shave a 5 year old beard and put all the trimmings in the light) and the light has been working great since then.
Not sure what your light is doing, but give that a try and see it you can revive it.