MR16 reflector lamps (lamps outside diameter 16/8 inch = 50.8mm) with GU5.3 socket or MR11 reflector lamps (lamps outside diameter 11/8 inches = 34,925mm) with GU4 socket can in the same version with DC or AC voltage and therefore be operated at the old halogen transformer if the minimum load is achieved by most 20W. Otherwise, the excessive no-load voltage of usually up to 18 volts does not break down to 12 volts and leads thereby to premature end of life of lamps. Therefore, nevertheless it is advisable to exchange for a LED transformer.
In small ceiling hole cutouts of 60mm fit either swiveling MR11 lamps or rigid MR16 lamps. MR11 lights have addition of pivoting only the advantage of the lowest mounting depth requirements. However, the lower lamps selection is more expensive and less efficient than MR16 bulbs and should be avoided if possible.
MR16 lights (even with the most widespread GU5.3 socket for operating voltage 12 V) can be converted with very little effort on mains voltage. High quality MR16 lamp with GU10 socket (230 volt mains voltage) are more efficient than that with GU5.3 version of the same manufacturer with identical price.
The built-in Power LED bulbs (diameter 5mm or SMD) require an operating voltage of approx 3.1 to 3.6 volts. These are combined in series-connected strands together that everyone needs a train operating voltage of just below that of the light source. The difference is a losing proposition burned and / or delayed for voltage matching and current limit per string with a resistor and / or a capacitor. Basically, it can be assumed that cheap LED lamps for line voltage with 60 LED (= 204-216 volts) are also constructed so. Arises in this only contained strand with 60 LEDs, 61 tracks and 122 solder points only one interruption, the entire light sources such as a Christmas tree lighting falls out prematurely. Since this is usually also sealed This is a total loss, is not repaired, but can only be replaced.
Much better are mains voltage lamps with 1 to 5 high-power LED (diameter 10mm with lens). Here is a mini transformer in the base is integrated, which is dimensioned such that it neither more nor less, but exactly can only supply the integrated LEDs. The open circuit voltage was adjusted by the uniquely determined by the manufacturer exact turns ratio and the voltage dip and the maximum current when subjected to the LEDs through accurate dimensioning of the iron core cross-section. Resistors are then completely useless. This construction is obtained both the maximum voltage matching efficiency, as well as reliability and durability. Through mass production and efficiency-conscious customer buying behavior can be the additional effort in terms of costs fully offset.
To plan the LED upgrades are best created an Excel spreadsheet in which all existing lamps, they recorded their performance, the estimated weekly operating time and starting cycles. For a normal tungsten or fluorescent lamp is set for a direct start about 2 or for a soft start at approximately 0.5 additional hours. The starting elevation for an LED lamp is only marginally so. Finally sets it firmly annual electricity cost limit and selects all heavy used bulbs for LED upgrade. Reserve lamps buys you no, but this applies as needed out of the room, its consumption is at the set limit. In addition, should fire protection reasons weakly stressed halogen lamps that are built into small cavities with adjacent combustible or giftigaserzeugenden in case of fire materials are replaced by LED.
The minimum installation depth is needed for luminaires with GU5.3 socket and should be checked before buying behind each provided downlight:
GU5.3 version 0,900cm
Overlap GU5.3 -0,000cm
LED lamp GU5.3 4,100cm
Minimum mounting depth GU5.3 5,000cm
Lamp cable GU5.3 0,200cm
Minimum mounting depth GU5.3 5,200cm
Where it goes, existing GU5.3 sockets should be replaced when LED Upgrade to GU10 sockets. Recessed lighting in ceiling cavity can be easily without tools against the resistance of retaining springs pull. Therefore cavity ceilings do not apply according to VDE as a closed housing and require mains voltage sufficient protection against accidental contact. For most GU10 fixtures protrude firmly connected with wires whose only existing core insulation is insufficient. VDE also prescribes either a closed housing which can be opened only with a tool or a cable sheath with strain relief around the cores. Almost all customary GU10 sockets are thus strictly speaking only as a substitute in lights, but not allowed in the cavity ceiling. Due to the extensive range and the fact that this also new downlights are settled, I assume that they are even used by professionals mainly in the cavity ceiling. One must therefore not be surprised if it grows back again and a warm renovation or even a Haarspitzenkatarrh. The same holds true for halogen and LED transformers.
This article is permitted one of only two in the whole assortment of Amazon.
The alternative product is: B0098LMIRA GU10 socket with connection and distribution box
A clear indictment of our economy! More pathetic I see the fact that these two are not fully usable uncompromising. Perhaps an enterprising dealer may be because times change what! In addition, both of which are decorated with a ridiculously meager Item description that hardly allows an informed purchasing decision. This review is to reduce this deficit slightly.
The installed halogen lights speaker cables are not approved for the mains voltage and must be replaced by mains power capable (with matching jacket). The Euro thus required cable with blade sheath (H03VVH2-F2x0,75mm2 bl + br) can be found at Amazon just as ready-made goods with mounted Euro plug, female connector and cord switch to correspondingly high prices. Affordable and cut to length as required by the meter lacking in range and currently still has to be obtained elsewhere. Any electrician will know that ferrules (in this tight connection spaces preferably without plastic collars) are required for fine stranded conductors with suitable notched pliers. This, in turn, there is also on Amazon.
The practice by some handymen alternative Spitz Enver soldering is strictly prohibited according to VDE! Bound solder is under pressure over time to, thereby increasing the contact resistance continues until the solder melts and then is still high impedance. At the end, an enormous homemade fire load that is sufficient for each insurance rejection.
To ASIN: B00DXODVP6 GU10 socket with terminal box (for additionally required junction box):
Very good, lower installation depth requirement, high management costs, lack of product data
To buy I chose after the gained knowledge that the alternative products for applications under concrete ceilings requires extra installation depth. This article contains a directly firmly screwed it GU10 socket with only integrated connection box, which is eccentrically set and twisted at the GU10 base of the light bulb. The photos gave me a more delicate impression unequal than actually running much more stable stock. This measures L76,4xB31,2xH24,25-6,85 = 17.4mm. For over GU5.3 luminaires slightly larger installation depth requirement of the GU10 light source which nevertheless relatively small installation depth of this version is added.
The minimum installation depth is required and should be checked before buying behind each provided downlight:
GU10 2,425cm
Overlap GU10 -0,685cm
LED lamp GU10 5,700cm
Minimum mounting depth GU10 7,440cm
GU10 lamp line 0,000cm
Minimum mounting depth GU10 7,440cm
The line is inserted on the outer edge into the housing so that no additional costs mounting depth and forwards not etwaig occurred condensate into the case, but leaves this to drain from the line next to it. It is only necessary to ensure that the projecting socket cover is not facing the direction in which the light is to be swiveled and is there for the required rotation lock no bar in the way. The housing length of 76,4mm divides from pivot in 15.45 + 60,95mm.
On the other length 70,0mm for a flexible pipe bend protection rubber must be added. This has 6 at the outer end and on the housing inner diameter of 8mm with a circular cross-section. For a non-matching here usual NYM cable 3x1,5mm2 9mm would be needed. The relief would be sufficient for a maximum of one such cable end. For increased cabling effort so appropriate round cables or conduits with necessary Euro flat sheath are (H03VVH2-F2x0,75mm2 bl + br) needed and a central junction box and special terminals for flexible and rigid wires. Two Euro lines only fit into the conical conduit strain relief, if you shorten this on 50mm. Since Amazon unfortunately only expensive with Euro plugs, couplings and -Schnurschaltern ready-made, but does not provide this optimum by the meter, it must be obtained elsewhere. The thus stellate pipeline network with a central terminal point caused little more electromagnetic pollution and potential source of interference as the alternative product. The in the junction box prescribed for stranded wire strain relief is improvised to achieve (eg., By vigorously to the cable jackets, tightened cable tie). As a junction box is recommended to lean that can be introduced as a transformer by a small cutout lights (z. B. ASIN B00HEJDL4W).
The various items of the article are as of a mass-produced items expected among themselves actually identical. The junction box contains a 2-pin terminal block with 2 screws per pole for each maximum 1.5 mm2 conductor cross-sectional area. He wears the inside on the case back under the mark L (left) and N (lower right) and is both there, as well as on the version also uniformly assembled (L = long brown wire up outside; N = short blue wire down Inside). The wires 0.75mm2 conductor cross-section are welded to the version unsolvable and provided at terminal clean with ferrules and clamped uniformly deep. Since here, however, the professional pre-assembly ends, this article also requires prior installation reflect actual improvement: The housing bases were cast in a duo and then plucked only apart. The terminal block is not as divided with a single cut and taken by a professional with 4 housing flush cuts so remained sharp noses on both parts. The terminal block could not (without pain) are recorded correctly, therefore, to tighten all clamps sufficient. For these life-threatening lack of quality, along with the lack of product data 1 star deduction from me! I've broken all versions and recut the items. Since the installation in the disassembled state is much easier, I have the versions only then remounted. Since you often can not rely on foreign preliminary work in my experience, would be my subassembled delivery (only ferrules mounted) the items at lower price equal prefer.
This article is not just with lights or in multipack package, but also be ordered separately and can be ordered as needed without excess.
The professional installation with this Article shall require, despite due rectification and larger pipe cost considerably less time than the alternatives and therefore is especially recommended for commercial installation. It is suitable for both wooden attic ceiling, as well as wood-beamed ceilings with high installation depth under concrete slabs. In retrospect, I would have because of the connection box additionally required decided only under the latter this and resorted in the attic ceiling on the alternative product.
