HyperSelect UFO High Bay LED Lighting Fixture, 100W Commercial Shop Light, Frosted, E39 Large Mogul Base, UL

Replacing 400w metal halide, brightness is satisfactory, love the instant-on, and look forward to longevity and consistent light output. Haven’t had it long enough to comment on longevity. Also have a few 150w versions for critical areas that need very bright (brighter than 400w metal halide).

This was the second one I've purchased for my 20/20 foot garage. If you already have a screw-in overhead light socket you only need to purchase an additional adapter to match the size of the E39 of the Hyper Select to the std size of a ceramic/plastic bulb fixture. The plastic covering around the fixture vastly reduces the glare that other LED high intensity fixtures have. Well worth the money.

These lights are just as great as they are advertised. I got E26 to E39 adapters, and voila, bright lights that light up my whole garage that has a 12ft ceiling!

lamp was used to replace a cfl lamp, customer was really happy with output.

The LED bulb is equal in color and brightness to a 400W metal halide bulb.

Great bulbs!

My participation in the purchase & install of 18 of these bulbs was great, & they've stayed working great for nearly a year now in a basketball gym. Obviously, they use way less electricity than High Intensity Discharge (HID) bulbs (main 2 types being High Pressure Sodium & Metal Halide [MH]). Though the 150W Hyperikon bulbs I helped buy produce about 40% less lumens compared to the 400W Metal Halide bulbs we phased out, these LEDs do NOT have any trouble lighting up the area. In fact, all agree that the gym is now BETTER lit than when all the fixtures had working 400W MH bulbs. Some of this may be owing to the fact that a lot of an MH bulb's light output depends on the reflector to distribute it well, & even if that happens, some of the brightness can be lost in the process. All of the light from these LED bulbs goes down to the area being lit below because of the "ufo" design. So, with 18 bulbs running, we now use 2,700W to better light the gym, as opposed to the 7,200W being used before (not including the extra electricity each ballast wasted on top of the 400 watts the bulbs used). So every hour these all run, we're saving at least 4.5KWH. At about 10 cents per KWH, that's almost 50 cents saved per hour. If they only run an average of 4hrs each day, that's still roughly $2 a day, or about $60 per month. THAT doesn't even include the potential money savings on demand charges for a commercial property. The bulbs can definitely pay for themselves fast, though one must factor in the time &/or money for installing, including bypassing old ballasts & maybe replacing burnt sockets (which will probably never be a problem again).BUT the high potential for energy & money savings isn't even the best part in my mind. The best part is the almost definite added safety benefits of these LEDs compared to any of the other options (even fluorescent retrofits), but especially compared to metal halides. First, these LEDs have few, if any, glass components. If one is somehow broken, the mess below is certainly less cleanup or hazard. All high bay lights, especially in gyms, should have proper wire guards at minimum. So, the likelihood of a ufo-style LED bulb falling to the ground should already be miniscule, but if that weren't enough, these 150w Hyperikon ones also come with steel cables, integrated with clips at either end, that allow the LED bulb to be directly tethered to the ballast box & emergency chain above. Almost zero chance of a falling bulb with the LEDs, but it's pretty easy for a Metal Halide to fall thru the center of a wire guard. However, the greater dangers of Metal Halides are that one, they can spontaneously explode, showering firery, molten fragments below. Even though it's unlikely for a person to be in such a specific place at such a specific and unfortunate point in time, this occurrence often causes fires. Two, when a normal MH bulb gets even a small crack in its main glass body, it usually keeps right on working, & the people below have no idea that this crack is allowing significant UV rays to hit their skin, often causing burns at least equivalent to a sunburn. This can be of greater concern than the explosion risk because this process does not depend on people happening to be located in the wrong place at just the wrong time. But special, expensive MH bulbs are available that resist explosion, & other, more affordable (and commonly code-required) MH bulbs exist with the letter "T" in their identifying markings that indicates they won't keep lit with even a crack in the outer glass, taking away most risk for UV exposure. However, I see no evidence that exists today, or any hope for the invention of in the future, an MH bulb that is safe in both categories of being able to not explode AND automatically dying when badly damaged. The "safety" versions of MH bulbs can only protect against one of the two main dangers, not both. It seems that the only way a traditional high bay fixture with MH bulbs can be extremely safe for human activity below is with install of a proper, expensive glasslens/cover instead of a wire guard. At that point, retrofitting with LEDs can be almost just as easy and/or about the same price, & having glass covers with MH bulbs STILL presents the constant danger of significant, breakable glass.So, these LED bulbs are great in terms of economics, safety, brightness & lighting quality, 5yr (10yr if registered) full warranty coverage, removal of the maintenance cost & trouble associated with having ballasts, & their noise level & type. That last one I had not addressed up to this point, but in order to keep the bulbs sufficiently cool, each has its own internal cooling fan that produces some noise. Almost all LED bulbs this size & wattage have such; and sure, it'd be nice if they didn't, but it's a worthwhile trade-off. In addition, all MH ballasts, especially as they age, make noise, & to me, the noise from the little fans is far more pleasant than that of ballasts.

So far the bulbs look great. Couldn’t rate 5 stars on longevity because don’t really have that answer yet.