These bulbs are not absolute daylight. I have used them on models, comparing true daylight with the bulb and the resulting skin tones show significant difference. They tend to be warmer than daylight. They are bright, nonetheless.

--- Carl Jr. Review Bottom Line ---
Overall I do recommend these Monster light bulbs.
Overall I would buy this again if I needed to.

Pros:
- Long lasting: I have been using them in and off for the past 4 years and they are still going strong.
- Flexibility: I even use them in desk lamp fixtures when I need a lot of light.
- Brightness: they are every bit as bright as advertised.
- Color: They are very close to daytime color.
Cons:
- They are not strong enough to withstand the impact of a ceiling fan at high speed.

I really love these light bulbs. I had four of them for my studio photography. I wish I could've made an array of 12 of these bad boys. But I got out of doing a lot of studio work. I had one on a stand and I lifted the stand up to move it forgetting about the ceiling fan and shattered one. Other than that they all still work 4 years later.

Now that I do not do much studio photography I have used them for long periods of time in ceiling fan lights or desk lamps that can fit these monsters and I have not had any problems.

I can't wait till one day I get some LED bulbs that are this bright at this price and if this quality! But for now these cannot be beat and I do not hesistate to buy more when the time calls for it.

I purchased these for my LimoStudio Octagon light. It uses this model, which the bulb is much larger than average. The light output gets bright very fast. It gets warm, but it does not give off heat. This provides excellent light for me even in a pitch black room and using my camera's flash. My only issue was, that one bulb did not work straight out of the box. So, do check both lights when you receive them. Vendor was quick to respond and is sending me out replacement. I'll give these 5-stars when I have the replacement and see that they last long enough to get my money's worth.

I had the smaller 45 watt lights, but found them to not be up to the task for what I needed. I was taking pictures of clothes for online listings for Ebay. These bigger lights really helped and provided the light needed to get the job done.
The price is not too bad, but I would caution, they're not the most durable. While they provide a good amount of light and are somewhat a popular item, these things can be temperamental. Their made somewhat cheaply and if you over tighten them when screwing them into a base or not paying attention, you can quickly break the lightbulb without realizing it.
I had one where the base completely came apart. If you need some affordable lights, these are capable in a pinch and ok for armature use.
These lights however are far from professional grade and definitely not made to last for a long time, especially if you're on the move.

I bought these a little over a month ago.Up until today they've been working perfectly. I set them up, left the room to gather some equipment, and came back to one of them smoking! The plastic base was charred and a hole melted through the glass. Maybe this was a wiring issue. The other one seems to be working ok for the time being. Will update.