I only wish it had a timer for hour of the day start until dawn. For me that would be more helpful. With daylight shifting it comes on too early and off after the need. Timer style needs adjustment every week. So I correctly choose this item .I bought 2 two-packs of these times for my outdoor Christmas display this year to replace older timers that I have had for over ten years. All four of these timers worked perfectly. I would set them to turn on at dusk and then remain on for six hours. The lights would turn off within 10-20 minutes of the six-hour duration that I wanted. I don't think that's too bad. This meant that some of my lighted zones where still on while others were off. Oh well. At least I didn't have to go outside each night and manually unplug them.The biggest selling point for me was the triple outlet on these timers and the fact that they point downward. I didn't take the time to wrap my timers in plastic bags to make them waterproof, but was pleasantly surprised how well they worked when it did rain. The timers kept working and never short-circuited. I'm not implying that these are indeed waterproof, but mine did survive relatively hard rains and kept working just fine.It was time to replace my outdoor timer which was starting to act up. This timer is great. So easy to set up and use. I’ll be recommending this to friends.I live in cold dark New England and this timer has saved my Christmas cheer. Super easy to set up and weather proof. Works beautifully and I can enjoy my Christmas lights from inside my warm home.Just plug in your lights, set the duration and you're done. This timer worked flawlessly. Couldn't be happier with how easy it was to use and how well it worked in awful weather conditions.Happy with itemWorks well and does what it advertisesSo easy to hook up arms use for outside decorative lights.Set it to go on for 6 hours at dusk which it does and it turns off after six hours and it then turns on again after it has gone off. There is no light source where it is set up that goes on and off to fool it into thinking it is daytime and dusk again so I will be going back to multiple photocell timers that actually work the way they are supposed to. Would not recommend it.8 hr and 6 hr modes do not work on both units I bought.These items seem very cheap compared to the BESTEN ones I replaced.Tried calling the number for Besten service but no one answers and voice mail is full. Poor Service.Returning to Amazon. These are garbage.I set my timer to 8 hours on the dial, it is suppose to turns on during dusk and off after 8 hours. However, after a few days of usage, when it is dusk, it never turns on. Have to re-plug it from the outlet to make it works again. Will return the product.This was super easy to use and set up. Loved not having to go out into the cold to unplug the Christmas lights every night.We had a crazy rain storm one night, so it was brought inside to stay dry as a precaution.Ive had all sorts of timers for our huge display and this one is on of the best. the plug in is for a 3 prong which is important as well as its reliable with wattage as well as lasting. My first one is into its 4 th year. Bought several now and am replacing the old timer dial ones with this unit.