What is the difference between gu5.3 and mr16

The latter we specifically recommend for commercial applications or those applications where the LED light bulb is exposed to extended operating hours or extreme temperatures. Otherwise the GU10 LED light bulb type is fine for most residential applications and usually the most economical choice. Also if you wish to replace your old 50W halogen downlight transformers by law you will require a licensed electrician unless the transformers have a plug in mains socket in the ceiling space, which in such cases you can simply unplug the light and purchase your LED driver with a mains plug already attached.

As most people would know a licensed electrician is not required to change a light bulb, only if there is mains wiring to be performed. April 29, Posted by Brandon McBride. Light Learning , Press News. October 9, at am. Leave a Reply Cancel reply Your email address will not be published. Shopping cart close. Save to Cart. Sign in close. Lost your password? Remember me. No account yet? Create an Account. This step is very important in picking which bulb is best for your application. MR bulbs usually operate at 12 volts, but a lot of applications created now are specifically designed to allow you to use a bulb designed to be used in volt fixtures.

This eliminates the need for the voltage to be stepped down to 12 volts through a transformer, saving you time and money. Besides size and voltage, the base is the next important thing to consider when purchasing an MR bulb. It is generally believed that the only base is the GU5. The number in the name of the base indicates how many millimeters are in between the pins. The GU10 has 10 millimeters between pins, while the GU4 has 4 millimeters.

Another factor to consider when picking an MR bulb is whether or not you want the bulb to be dimmable. PAR16, the main difference is the size, variety, and heat. Unlike MR16 type halogen bulbs which have dichroic glass reflectors, the PAR bulbs have aluminized glass reflectors which direct the heat generated by the bulb to the front of the bulb.

Because of this, PAR16 bulbs are usually not suitable for ceiling installations of 8 feet or lower. PAR16 bulbs also produce more directional yet duller lighting and have a standard, medium screw-in type of base and work in medium sized E26 sockets.