What is the purpose of a dual filament bulb?
Dual filament bulbs such as the 3157 are used as dual function bulbs. Each filament can be integrated into separate circuits. The most common use of dual function bulbs is in the tail and brake light circuits of vehicles. Vehicles such as the PT Cruiser use the same bulb socket to provide brake and tail lighting.
What is a dual filament bulb?
If your car use one bulb to give both high and low beam, that means your current bulb has two filaments, a dual filament bulb is nothing but a halogen bulb with two lighting filaments side by side. In order to convert this type of halogen bulb to HID (or LED), you must first understand Dual Filament Halogen Bulbs.
Why do brake lights have two filaments?
The contact closest to you is the low filament contact for parking lights and tail lights, the other is for the high filament for turn signals and brake lights. Look also at the filaments inside the bulb. One is thinner and will have higher resistance to draw less current and give less light.
What does 21 5W mean?
The P21/5W is the European version of the dual filament lamp. It is 21 watts for the major filament (brake or turn application) and 5 for the minor filament (parking lamp).
What is a dual function LED bulb?
LED replacement bulbs can fit vehicle tail lights, brake lights, reverse lights, turn signals or side marker lights. This 3157 dual-contact, dual-function bulb has 18 LEDs (5050 SMD) that create a 360° viewing angle for better, allover light emission with reduced hot spots. Price per bulb.
What does W5W mean?
A W5W is commonly used in interior lights and sidelights. Some vehicles use them for number plate lights, too. The name W5W means that the bulb is 5 watts and has a wedge-type base. You can find both halogen and LED bulbs in this fitting.
What kind of light bulb does a VW Jetta use?
Volkswagen replacement bulb guide Model Year Low beam High beam Fog/ Driving light – 2009 – 2006 D2S H7 9006/HB4 Jetta 2017 – 2014 H7 H7 H8 – 2013 H7 H7 H8 – – – – 9006/HB4
How much does it cost to replace a Volkswagen headlight?
HID replacement headlight bulbs for Volkswagen – start from $129.95 These are the HID conversion kits – start from $128.95. LED fog light bulbs to match your HID bulbs, start from $129.95.
What kind of light bulb does a VW Golf use?
Volkswagen replacement bulb guide Model Year Low beam High beam Fog/ Driving light CC R-Line 2017 – 2014 D3S – 9006/HB4 e-Golf 2017 – 2015 LED LED – with halogen 2017 – 2016 H7 H15 – EOS 2016 – 2007 H7 H7 9006/HB4
What kind of light bulb does a Volkswagen H1 use?
Volkswagen replacement bulb guide Model Year Low beam High beam Fog/ Driving light – 2005 – 1999 H1 H1 H1 With HID 2017 D3S – 9006/HB4 With HID 2016 – 2012 D3S – H8 With HID 2005 – 2003 D2S H1 H1