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GU5.3 MR16 light source
Low-voltage light sources for directional lightWhat are GU5.3 MR16 light sources?
GU5.3 MR16 light sources are low-voltage light sources with a pin spacing of 5.33 mm. MR16 describes the diameter of the reflector: 16/8 inch.
A less common version is GU5.3 MR11. For this reason, the base and reflector size should always be taken into account when replacing the bulb. A further note: There are also G53 light sources (without dot and U) - but these are significantly larger and are operated with 230 volts.
:format(jpeg) "GU53 from Phillips")
GU5.3 MR16 light sources are all standardised, which means they can also be easily replaced by LEDs.
:format(jpeg) "GU53 LED reflector from Phillips")
GU5.3 MR16 lamps provide directional light thanks to the reflector, which is mostly used in spotlights and recessed luminaires.
Where are GU5.3 MR16 light sources used?
The most common area of application for GU5.3 MR16 lamps are spotlights and spotlights, where the light source is shown to its best advantage thanks to the reflector. The lamp can be found in cable systems, single and multi-flame surface-mounted ceiling luminaires and above all in recessed luminaires.
However, perhaps the best-known luminaire with a GU5.3 MR16 socket is the One From The Heart table lamp by Ingo Maurer, which the world-famous designer originally created as a wedding present.
:format(jpeg) "LED cable system from Paulmann")
Many low-voltage wire systems use GU5.3 MR16 reflector lamps.
:format(jpeg) "Table lamp from Ingo Maurer with heart design")
World-famous: the One From The Heart luminaire by Ingo Maurer.
What is the difference between GU5.3 MR16 halogen and LED lamps?
GU5.3 MR16 lamps are also available with modern LED technology. Changing the lighting technology has no influence on compatibility, the pin spacing and the reflector size. GU5.3 MR16 LED lamps are therefore only an improvement compared to conventional halogen lamps. LEDs:
- require less energy for the same brightness
- have a high service life
- are switch-proof
- achieve immediately 100 % brightness
Especially as GU5.3 MR16 light sources are rarely used on their own, but rather in groups in recessed spotlights or cable systems, it is worth converting to LED.
:format(jpeg) "Low-voltage GU5.3 recessed light")
:format(jpeg) "Philips GU53 LED reflector")
What is the difference between GU4 and GU5.3?
The difference lies in the pin spacing (GU4 pins have a spacing of 4 mm) and usually also in the reflector size, indicated by the following MR.
Both light sources are low-voltage light sources, but the smaller GU4 lamps are used more in recessed furniture lights, under-cabinet lights or extractor bonnets, for example.
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