R7s LED Flashlight By “Del-Ko”

Light and electricity-guzzling halogen rods are intended to replace, so far but rarely meet the high expectations: R7s-“Retrofit”-ledlamps. One has adopted are now two privately purchased copies with smoke and stench, after not even two years and less than 1000 hours of light.

R7s LED Flashlight by Del Ko3

The starting point: Halogen rods with an enormous hunger of power used in countless floor lamps, ceiling floodlights and spotlights. 100, 150, or even 300 watt are here rather middle-class as a tip. These lamps are excellent heat suppliers and implement only 5 to 10 percent of their power consumption in light. After all, they are all dimmable without any problems and can be operated therefore theoretically also with reduced power.

R7s LED Flashlight by Del Ko2

The supposed solution: There are now several high volts R7s-“Retrofit” flashlights with power-saving LED technology – some of which also marked “dimmable”. You should be about ten times more economical than their halogen predecessors and needbecause of their original setting effect also no reflectors.

Exaggerated halogen comparisons

The problem: So simple that doesn’t work unfortunately. Often the provider call unrealistic comparison values – for example, that you could replace with 10 Watt power LED and well 900 lumen a 100-Watt halogen staff. Or that instead of 80 watts, also 8 Watt range.

R7s LED Flashlight by Del Ko1

The customers then not infrequently determine in practice, that can keep up the LED bars nor the maximum brightness and the easy dimming the color impression. In addition the relatively chunky design, which requires major renovations on the luminaire. Reputation for high-quality branded goods – about of OSRAM, Philips, and LEDON – remains unheard: the stay so far all of the R7s – LED “Retrofit” area ‘ out, and this may have good reasons.

Not as bright as the size promises

My experience: I’ve try two R7s-LED flashlights in August 2011 for two ceiling washlights with dimmer in the “DEL-KO”-online-shop purchased – unit price at the time: legendary 32,60 EUR. That they could not really replace the previously standard mounted 150-Watt halogen rods with each well over 2000 lumens with only 600 lumen, I of course previously knew. But since these guzzlers anyway always only greatly dimmed served as “Ambient”lighting and never had to deliver the full light intensity, that went okay.

Before the LED bars to the action could proceed, the bolt-protective glass on the halos never had to disappear of course. You would have been extreme in the way. Then, it was also the reflectors in luminaires tubs on the collar. Out with it, otherwise the led had far below not enough “Monster” space after. After all, the plug with the two contacts worked left and right then fairly well.

Depending on the height of the reflector pan, you should expect that the upper part of the LED lamp protrudes something over the edge. Smaller people overlook that because of the steeper angle of view perhaps high ceiling washlights. It remained me of course not hidden my 1.92 m

There are problems with dimming

Smooth and flicker-free dimming was no longer possible after the conversion. In four or five places of the dimmer way, the bars lit up stable and actually with correspondingly reduced brightness. Then the Red dimmer light on one of the two lights flickered however. Already very sensitive, you must balance the dimmer setting actually works.Such “dimmable” LED lamps apparently does not really get along with the standard controls of the most ceiling washlights.

The colour temperature should be “warm white”, approx. 3200 Kelvin seemed especially when a copy significantly “colder” than the one specified. “White with pretty greenery and some yellow and blue” light impression was my subjective. The two supposedly identical lamps differed significantly at the colour temperature. These were at least 150 K difference. The maximum brightness was similar to about a 50-Watt halogen Rod – the angle was similar to around 180 degrees.

The color rendering index was not even called and was probably not higher than CRI 75 (halogen lamps: 99-100). A total no revelation, but for the desired purpose barely acceptable. Finally, saved those things a lot actually power and developed also much less heat – despite the absence of significant cooling fins with maximum 53 degrees outside temperature. This discoloration or even fire of the sloping Panel no longer threatened by the relatively close on a wooden panels and quite often luminous ceiling washlights.

Early death with smoke and stench

This month the rarely used copy in the other fixture has but it breathed out his life. In less than two years, it was no more than an average of approximately one hour daily in use and remained far below the promised lifetime of over 25,000 hours of light. Even the known short-lived halogen rods could have done more on average than about 800 hours.

The sudden death of the lamp was accompanied by the penetrating smell of blown electronic components and light smoke signals. So what I knew of other LED lamps: clear case of driver failure. The 36 LED chips themselves are likely to be all intact. Not an isolated case at “Retrofits” this kind.

Now, the unit goes back to “DEL-KO”, if I can get an already requested “RMA” RMA number from there. Normally should be covered by the statutory two-year warranty period; but you never know. It will be difficult also contribute to the replacement: not only “warm white” and dimmable R7s lamp more In the assortment can be found. Why probably?