(VERY IMPORTANT UPDATE! I just today tried to use the timers that were included with each ballast. Luckily, NEITHER of them worked. After disassembly, to see what the problem could be, I was amazed at the huge fire risk posed by the faulty design and manufacture of these timers. First, from the outside, the plug reads 110vac, 10amps --- that's 1100 watts.... Higher up on the case, it has 1800 watts printed. If the plug is only rated for a maximum of 1100 watts, that's the MAXIMUM. Second, after disassembling, I couldn't believe what I saw. In the attached photo, you can see the load wire is broken such that less than 50% is actually remaining connected. Any load on this wire over 150 watts is going to start a fire. Third, I'll just sum up by saying the soldering and insulation inside is so poor that if the timer doesn't short out immediately, it's going to start a fire from arcing.With this in mind, I'm EXTREMELY disappointed in this seller. The ballast and bulbs are the only parts of this package I can trust. I had to rewire each fixture because the crimped wire connectors (which are supposed to insulate) were cracked from improper assembly.It's a shame to see such a decent ballast surrounded by crap. )I checked the UL listing on the ballasts and they seem to be genuine... I recommend getting genuine UL-listed timers if you aren't intentionally trying to set your property on fire.Original post:Only had a few days, I have been giving the product a good test first. Here's my experience so far:Ordered two of these. Both arrived with perfect packaging. However one of them had a damaged reflector that was obviously packed that way... I really don't like to see things like that.Both sets work great with both types of bulbs. However, there's a major flaw if you want to leave the ballast on a dimmed setting and use the timer. The bulbs fail to light unless started at 100%, so it makes the dimming feature (which I really like) useless. Aside from that, I really love the ballasts.The glass shield/air duct connector is of excellent quality. The crimped wiring connectors should be cut off and properly soldered together. As it is, it will probably not take long to burn the wiring from arcs. The cord strain reliefs on both weren't fully tightened, neither was the mogul socket. All of these I can fix myself, no problem.. But they should be addressed before full-time use.The styrofoam packing is very low quality, bits of styrofoam are everywhere, and the static charge drew them inside the ballasts and all over the glass.. All of it must be completely removed before using... (this was pretty annoying)The light hangers are nice, but they just don't inspire confidence. Yes, they can support the lamp, however I would highly recommend adding a metal chain in parallel to each one as a backup. That will increase your safety immensely, should the hanger's cord break (it will degrade from the light exposure) or should you press the lever to lower the lamp without remembering to first hold on to the cord properly.If the unit falls, and you don't have a fire as a result, you will definitely have a horrible mess of glass (and some mercury) to clean up.The power cords appear to be of excellent quality. The timers appear to be a fairly good quality, though I wouldn't use them without first testing and having a proper arc fault detector on the circuit and smoke alarm in the room. The reflectors are of good quality, but have very, very sharp edges, which is normal.I would recommend including a few pairs of disposable exam gloves in each kit... For changing the lightbulbs and cleaning the glass tube.There are two sets of instructions with different addresses and procedures for the ballast warranty. I suspect only one of them is correct.. That should be fixed.One of the manuals is obviously directed at assembling the whole kit.. The ballast manual does include most necessary precautions, however, this is "serious" equipment. The manual needs to be edited to get rid of the mistakes, duplicate information, unnecessary info, etc, etc. Clarity and brevity are important when there are serious hazards possible.. And it or a copy of it should be placed so that it is the first thing a customer reads before any thing else in the kit.