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TCP 1R4016-41K - 16 Watt - R40 CFL
75 W Equal - 4100K Cool White - Min. Start Temp. - 20 Deg. - 82 CRI - 47 Lumens per Watt - 15 Month Warranty
TCP R40 CFLs feature Amalgam Technology which provides cooler operating temperatures for consistent performance in any position.
Stock Code: FC16-R4041
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Rated 2.7 out of 5 by 3
reviewers.
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
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 1 out of 5 by jrista Extreme Magenta Hue
I recently purchased 11 of these to furnish my main floor floodlights. I have never cared for the extreme orange hue of tungsten bulbs, and was looking to replace the ones I had with something that offered a more "natural" white with a subtle yellow hue. Simply put, these lights are terrible. They are EXTREMELY slow to warm up...when turning them on they brighten to about 50%, then dim to about 25-30%...and over a period of a couple minutes will warm to full brightness. If these bulbs started at 60% and warmed to 100% brightness over 30 seconds, that wouldn't be terrible, but as it is the "turn on" experience is terrible. Regardless of their brightness, however, these bulbs have a severe magenta hue. Not just a little...everything takes on a very unpleasant, almost eerie purple cast. This doesn't go away at full brightness. Absolutely do NOT recommend these bulbs to anyone.
June 24, 2012
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