CTKcom 250-Watt 3.1-Inch T3 Halogen Bulbs(5 Pack) - J Type 78mm Double Ended 120 Volts 250 Watt T3 Halogen Bulbs R7S Double Ended Filament Flood Lights Quartz Tube Lamps 120V,5 Pack

Works well and is very bright

Great value. Individually boxed. Makes it easy to store. Exactly what I was looking for.

These lightbulbs have no tent at allVery bright for a backyard though but like I said it’s not tented so the price goes along with what you get you get five bulbs for cheap price

House had an old light that used these outside. Super bright but it lasted less than a month. I bought an LED fixture to replace the old one.

Less expensive than the ones you can get at the hardware store. Just got them, so cannot say how long they last. But fine so far.

I purchased a 5 pack of these bulbs (250 Watt). I received them on Sept. 17, and installed them on Sept. 21 into my backyard security lamps. One of the bulbs blew out on the 24th, and the other on the 28th. I am not very happy having to replace these bulbs so quickly. I know you get what you pay for (Cheap), but the original bulbs I had in my lamp units were 4 years old. I will not recommend them.

It's too soon to know how long these will last in actual use at this time. However, these fit perfectly and and are nicely packaged.I have a couple of quartz-halogen work lights kits that I purchased almost twenty years ago now. They consist of a multi-piece adjustable stand with light fixtures, all in a compact carry/storage case. I used them more times than I can count and have loaned them to neighbors and friends over the years.The only problem I've had is finding replacement bulbs locally, as these are only 250 watts and not the more popular 500 watts bulbs that local suppliers usually have in stock.But I like these 250 watt units as I generally don't need the hotter bulbs and this offering from CTKcom was perfect. Each bulb is individually wrapped in a small protective plastic sleeve and inserted in an equally-sized cardstock box.The bulbs are standard sized at just over three inches in length with white ceramic ends that fit into the usual spring loaded worklight receptacles of this type. The glass filament tube is crystal clear, very well made, and the fillament itself appears to be quite sturdy.Generall speaking, failure of this type of bulb usually happens when the lamp is knocked over or falls in some matter, often breaking the bulb. These particular bulbs appear to be constructed in a manner to protect from easy breakage.One thing to note for new users, is that you should not touch the bulbs with your bare fingers, as the skin oil or dirty print on the glass tube may cause an irregular hot spot that will cause uneven thermal expansion and increasing the chance of breakage. (That has nothing to do with the quality of manufacture, it's a failure in handling of any heated bulb of this type.)Great price, well made, and a good quantiy to have in your back-up stock. Thanks CTKcom.

3 out of 5 only because it's a 5 pack.Some of the bulbs instantly broke when installing.Some burned out after minutes of use.Some last for a few work days.Overall..... Don't put the rest away until you turned the bulb on for some time.If they all burn out...... I'm going to led. I'm not playing anymore.

Worked flawlessly