Dunno what this timer is, but if it'sjust one of the bog standard 24 horu cheapo timers, then it will work, but not necessarily reliably. I ued a timer like this for my 400w hps and while it worked, maybe once a week or once every 2 weeks the timer would just faiul and it would stick the light on 24/7 until i noticed and sorted it out. Bought a £15 contactor timer off ebay (plug n grow was the brand) and that does my 600w just perfect without any issues.
Those are junk. I do use a walmart timer though. Just get the digital grounded Brinks. Its about 20 bucks. I think the max is something like 1875W or 15A.
cheap units aint any good because they cant handle the load that happens when you switch a hps light on. hps lights surge to start the light, when starting they draw 2 to 3 times the stated current causing the contacts to more or less weld together so very unsafe. stick with a decent unit and put your mind at rest.
that timer will work but they suck dont cheap out on a timer it will cost you bud in the end what if your away a day or 3 and the timer comes on and stays on and your in 6 weeks flower then you hit your ladies with 24 or more hours light u will be living in hermie nation
I've had a couple of those controlling a 400w and 1000w growlights....the 1000w did burn a prong and went bad...one still works.....I've changed to a digital type, higher rated now......The Brinks (grouded) are ok when in a rush, but certainly can be improved on with little extra cash....
I've used cheapo $3 timers on 1000w lights. They popped the power strips every now and then but worked. Have had no problems with 600w lights and cheap timers. Haven't seen a cheap timer rated below 1150w 15amp.
^I've used those same ones, as well, without any problems, for about two years. One was hooked to a 600HPS, and the other had two 400's on it, at one time. Just keep an eye on them until you can afford to get some digital timers, and you'll be fine. I've had mechanical timers stick 'on' before, but it wasn't that exact type. They are prone though.
I've had one of these types of timer's wheel stop spinning before. So, it just never advanced the time.
The digital timers seem more reliable as there's not something mechanical determining what time it is. They should all be rated for at least 15A. At least that's what I've seen. Digital timers can be had for less than $15. They have battery backups for your schedule and keeping the time.
Keep in mind that some of them have features which adjust for expected darkness times and DST. You have to be able to disable these features.