What does GU5 3 mean on a light bulb?
Halogen MR16 Bulbs (aka MR16 or GU5.
It measures 50mm across the face of the light bulb. The 5.3 in GU5. 3 means that there is a distance of 5.3mm between the two pins.
What is the difference between GU5 3 and GU10?
The GU5. 3 base commonly operates using 12 volts while the GU10 operates off 120 volts. Voltages vary greatly across all bulbs types so always check the specifications and ensure your fixture is compatible with both the fitting and voltage.
Are MR16 LED bulbs dimmable?
Forming part of the successful Philips Value LED range of low energy LED lamps is the new 12V 5.8 watt MR16. Providing a low energy alternative to a 35 watt halogen it is dimmable as standard and designed to operate with existing low voltage transformers.