The Matchbox Relay is suitable for cars, trucks and motorcycles.

  • The Matchbox is a high-quality DUAL headlight relay unit (it contains two independent 15-amp relays) for controlling high and low beams, auxiliary lights or fog lights. Other uses might include controlling power-windows, power sunroofs or horns.
  • The Matchbox is small enough (about 2 cubic inches) to fit inside a crowded motorcycle headlight bucket yet powerful enough to control high wattage lighting or electrical loads up to 15 amps (180 watts) per relay*.
  • The Matchbox uses quick-disconnect .250″ terminals for easy wiring.
  • Installation instructions are written for the ‘electrically challenged’ with simplified diagrams, basic wiring theory and helpful tips.
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Description

Description:

 

The Matchbox Relay was developed for the limited space of a motorcycle, but can be used on cars and trucks too.

•The Matchbox is a high-quality DUAL headlight relay unit (it contains two independent 15-amp relays) for controlling high and low beams, auxiliary lights or fog lights. Other uses might include controlling power-windows, power sunroofs or horns.

•The Matchbox is small enough (about 2 cubic inches) to fit inside a crowded motorcycle headlight bucket yet powerful enough to control high wattage lighting or electrical loads up to 15 amps (180 watts for 12-volt Matchboxes, 90 watts for 6-volt Matchboxes) per relay*.

•The Matchbox uses quick-disconnect .250″ terminals for easy wiring.

•Installation instructions are written for the ‘electrically challenged’ with simplified diagrams, basic wiring theory and helpful tips.

Features:

 

•Each Matchbox has two independent 15-amp relays in an extremely miniaturized size and can independently control two circuits such as high and low beams.  Each relay can handle up to 180 watts* for 12-volt Matchboxes or 90 watts* for 6-volt Matchboxes.

•The Matchbox uses electromechanical relays to minimize internal voltage drop and maximize amperage flow through the relays.  The Matchbox also uses very thick copper to accommodate high amperage.

•The Matchbox uses ‘flyback’ diodes to arrest high voltage spikes generated by the electromechanical relays from harming other electronic devices on your vehicle.

•The Matchbox outer case covers are non-conductive flame-resistant lightweight fiberglass. No need to worry about short circuits caused by incidental contact.to nearby metal or electrical components.

•It’s easy to connect wires to the Matchbox using quick-disconnect slide-on .250″ female spade terminals (not supplied) available at automotive and hardware stores. Spade terminals crimp onto wires without soldering but require a crimping tool.

•No relay sockets are required.

•MADE IN THE USA

Specifications

Each 15-amp relay is capable of supplying up to a 180 watt load on a 12-volt electrical system.

Each 15-amp relay is capable of supplying up to a 90 watt load on a 6-volt electrical system.

*IMPORTANT NOTE: If both relays will be energized at the same time (for example if high beams and low beams are going to be powered on at the same time) the combined load of both relays  should not exceed 180 watts (15 amps total) for 12-volt Matchboxes or 90 watts (15 amps) for 6-volt Matchboxes. 

In other words, limit the Matchbox to 15 amps through both relays combined if both relays will be energized at the same time.

…To calculate the wattage of an electrical item when you know the amperage it consumes, multiply the amperage times the system voltage.  For example, a lamp or motor that draws 10 amps on a 12-volt system uses (10 times 12) 120 watts.

…To calculate the amperage of an electrical item when you know the wattage, divide the wattage by the system voltage.  For example, a 60-watt light bulb on a 12-volt system uses (60 divided by 12) 5 amps.

Matchboxes are not waterproof and should be installed where they will remain dry.

Matchbox relays are not compatible with AC (alternating current) electrical systems, like those that typically employed a magneto and no battery.