Dual Light Driver
Used to Drive One or Two H4 Headlight Bulbs for Motorbikes.
Overview
- Designed for use with 60/55W H4 Headlight Bulbs
- Can be used on bikes with either single or dual head lamps
- Waterproof – electronics potted.
- Length of cable from battery terminals to the controller is approximately 1.5m
- Not designed for use with HIDs.
Brighter Headlights
The kit powers the bulbs from the battery, which avoids the voltage loss from going through the bikes wiring. This makes a noticeable difference to light output. It is a well-known modification using relays, although the solution is bulky and a lot of wiring. The DLD is quite an elegant fit for motorbikes.
The DLD provides the ability to upgrade from old 35/60W to the latest aftermarket 60/55W bulbs. This provides a very significant boost in light output. The DLD can reduce the brightness while the alternator is not producing as much power, such as at idle. So while stationary, when you don’t need the extra power, the DLD will avoid the headlights draining the battery. This is configurable and can be turned off.
Delayed On
The low beam can delay on, giving you time to start your bike without the head lights loading up the battery. Makes for easier starting. This can be set to a fixed 10 or 16 seconds, or the default is 8 to 20 depending on detection of the engine running. Or just flash the high beam and they will turn on straight away.
Courtesy Lighting
Just before turning ignition off, flash the high beam. Courtesy mode will then activate and the headlights will stay on (at lower power setting) for a period so you can make your way in the dark. Configurable for 30, 45 or 60 seconds. If you flash the high beam twice, it extends the time another 20 seconds.
Transition Overlap
Usually, when you go from low to high beam or back, you get a short black out period. This is because the bulbs don’t instantly turn on with full brightness. Instead, they ramp up until they reach full power. This can be disconcerting when riding in unlit areas. The DLD incorporates an overlap, giving you a quick seamless transition without the blackout period.
Diagnostic LED
The multi-coloured diagnostic light provides a handy tool. If something is wrong, this will make it easy to know where the problem is. It provides a reference for battery/alternator voltage. Shows when the low or high beam is on. When courtesy mode is active. Reports if he high or low beam filaments have failed. As well as alerts when the regulator/rectifier has ailed and causing an over voltage condition. If it display red or is flashing, you can refer to this user guide to find out what the problem may be.
Overvoltage Compensation
If you do have a failed regulator/rectifier and it’s causing over voltage, typically the first symptom is your low beams burn out. The DLD however will automatically compensate and maintain a safe power level for your low beam, to avoid bulb burnout. The diagnostic light will also be alerting you to the regulator/rectifiers failure.
Emergency Lighting
If at any stage your low beams fail, the DLD will automatically enable the high beam at partial power so you don’t suddenly find yourself riding in the dark, with no headlights. The diagnostic light will be flashing to alert you, so you know the bulbs need changing. You can still use full high beam using the normal high beam control.
Headlight Bulbs
The kits can be ordered with or without headlight bulbs. The Philips H4 PowerVision 60% bulbs are an excellent aftermarket bulb, very bright. The Philips H4 X-treme +100% bulbs are brighter again. They have a slightly lower lifetime and appear to bias the projected beam more forward facing. These are our recommended bulbs, which we buy in bulk and packaging with the kit at a low cost.
You can buy the Dual Light Driver without bulbs, as you don’t need to use these bulbs if you have your own. However please avoid using cheap bulbs, as often they don’t last long and have inferior light output. Use those that come from a reputable manufacturer, such as Philips, Sylvania, PIAA etc…
