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Rumpelteazer · 08-06-2020, 02:02 PM

In the Netherlands I've never seen LED bulbs labeled as suitable for enclosed light fixtures. But we have a limited number of brands. Calex is okay for the price, some bulbs have a bit of a greenish cast. Unfortunately Calex is focussing on decorative bulbs and is phasing out a lot of their regular bulbs. Dimming works well with their own dimmer switch.

Philips is also good, we can't get their Hue series, according to Philips we're not specialists (in reality the big chain stores have exclusivity). We do have their Scene Swtich series. Which has three brightness settings and works with a regular switch.

We also sell LED bulbs from an importer who is originally from China and his family owns a factory there. The quality is really good, as is the colour quality (CRI). They are also the one that's most universally dimmable we've found so far.

Dimming is very hit or miss. Most LED bulbs work with two or three dimmer switches, and there are hundreds of different types if dimmer switches at this point. The first batch of bulb is tested with dimmer switches, each new batch is updated, and they don't retest which dimmers work. Sometimes a dimmer will work for months and then the problems suddenly start. Last year a manufacturer released three different universal dimmers, you don't do that if it's truly universal.

If a manufacturer says a bulb lasts 10 years that means 10000 hours. They assume a bulb is on, on average, for three hours a day. All lifetime claims are theoretical. They test the LEDs in hot temperatures. For instance in 40C temperature a bulb's life will half compared to a 20C temperature. That way they think they can determine how long a bulb will last under average temperatures. But we know from experience it doesn't work in reality.

We usually tell customers about the the warmth problem, for some situations we can tell if a LED will work, but for some situations we can't. If you want LED but you haven't got the space for a bigger light fixture, or you need one that's closed for wet/humid spaces we advice to get a light fixture with integrated LED, then the light fixture itself will work as a cooling mechanism.

08-06-2020, 02:02 PM	#33819
Rumpelteazer Grand Sorcerer Posts: 5,347 Karma: 27919658 Join Date: Sep 2009 Location: Utrecht, the Netherlands Device: Kindle Paperwhite Signature Edition	In the Netherlands I've never seen LED bulbs labeled as suitable for enclosed light fixtures. But we have a limited number of brands. Calex is okay for the price, some bulbs have a bit of a greenish cast. Unfortunately Calex is focussing on decorative bulbs and is phasing out a lot of their regular bulbs. Dimming works well with their own dimmer switch. Philips is also good, we can't get their Hue series, according to Philips we're not specialists (in reality the big chain stores have exclusivity). We do have their Scene Swtich series. Which has three brightness settings and works with a regular switch. We also sell LED bulbs from an importer who is originally from China and his family owns a factory there. The quality is really good, as is the colour quality (CRI). They are also the one that's most universally dimmable we've found so far. Dimming is very hit or miss. Most LED bulbs work with two or three dimmer switches, and there are hundreds of different types if dimmer switches at this point. The first batch of bulb is tested with dimmer switches, each new batch is updated, and they don't retest which dimmers work. Sometimes a dimmer will work for months and then the problems suddenly start. Last year a manufacturer released three different universal dimmers, you don't do that if it's truly universal. If a manufacturer says a bulb lasts 10 years that means 10000 hours. They assume a bulb is on, on average, for three hours a day. All lifetime claims are theoretical. They test the LEDs in hot temperatures. For instance in 40C temperature a bulb's life will half compared to a 20C temperature. That way they think they can determine how long a bulb will last under average temperatures. But we know from experience it doesn't work in reality. We usually tell customers about the the warmth problem, for some situations we can tell if a LED will work, but for some situations we can't. If you want LED but you haven't got the space for a bigger light fixture, or you need one that's closed for wet/humid spaces we advice to get a light fixture with integrated LED, then the light fixture itself will work as a cooling mechanism.