Rated 3.5 out of 5 by 2
Rated 4 out of 5 by amalak Great Energy Saver - Long Warm Up
It's incredibly hard to find 4100K bulbs in big box stores, so I was really happy to find this bulb here. The price was great, too. My only problem with this bulb is that it does take a little while to warm up and the color is a little funny until it gets to full brightness. That's why I give this 4 stars instead of 5. Overall, however, I think it's a great bulb that meets my needs just fine.
June 29, 2012
Rated 3 out of 5 by DNeuwir Decent color quality for CFL, but terribly slow to warm up.
I've now had 8 of these 4100K bulbs in overhead canister lighting in our kitchen for about a year. At full brightness they produce a very "white" light with just a hint of yellow, and lacking the bluish tint present in 5100K bulbs.
One thing I definitely hate is that, even from first use, they take an incredibly long time to warm up to full brightness. When first powered on, they illuminate to perhaps 20%, and slowly ramp up to 100% brightness over almost 5 minutes.
We typically have an on/off cycle of perhaps 4 hours use per day. One has already burned out after about 1 year of use, which is about what we were getting from prior halogens, making these bulbs very expensive when adding purchase cost in to the total dollar value.
In all, these lights are "okay". I'd probably be rating them higher if they lasted longer than 2000 hours.
March 8, 2013