2016年5月19日星期四

Multi color led light bar

A variable color light system includes multiple dual color light emitting diodes (LED's) arranged in a light bar. The dual LED's are arranged with a common cathode and two anodes. The light system includes a switch that controls the power to the light system. The system is controlled to power a first anode, a second anode, or neither anodes. When the first anode is powered, the dual LED's emit a first color. When the second anode is powered, the dual LED's emit a second color. The light system is LED driven. The dual LED light system can be used in a light bar that can be used on a vehicle, an off-road vehicle, a recreational vehicle, or a boat
White amber color is the most normal in the multi color led light bar industry now

2016年5月18日星期三

Mounting clamp of led light bar

Expect the led light bar ,the mounting accessories is the key point for us to install it on the trucks ,jeep ,offroad
Auxiliary lamps are commonly mounted on automobiles, trucks and utility vehicles to augment the illumination for driving on unlighted roads, for off-road travel and for driving during conditions of adverse visibility such as rain or fog. U.S. Pat. No. 4,692,845 discloses a bracket for mounting an auxiliary light on the roll bar of a truck where the bracket allows the light to be flipped over for use in forward and rearward illumination. U.S. Pat. No. 4,714,223 discloses an improved mounting device for affixing a fog lamp to a vehicle bumper. U.S. Pat. No. 4,595,163 discloses a mounting bracket comprising two serrated jaws brought together to engage a vehicle bumper by a screw clamp.
Many vehicles now come equipped with grill guards. Owners of utility vehicles in particular often choose the option of a heavy duty grill guard to protect the radiator during off road travel. The grill guard affords an opportunity for mounting auxiliary lights on a stable platform at a variety of locations. Moreover, the prior art identifies mounting the lights on the bumper as an area where lights are routinely impacted and must have mounts that can allow the light to deflect with the impact. Mounting lights on the grill guard allows positioning of the lights above the bumper. What is needed beyond the prior art is a mounting clamp designed to allow easy attachment of a driving and/or fog light to the grill guard of a truck. What is further needed beyond the prior art is a mounting clamp that does not require any drilling or attachment directly to the vehicle body.
Don’t forget the mounting accessories when you are preparing to install the led light bar for your tractor,cars.

Applications of LED Technology in Auto Lighting

Many people are still wondering whether LED is better than HID ,LED has already becomes the trend ,many of customers in canton fair sells HID before and now all starts to sell led lightings cause the market and demand is there.

As one of the essential safety parts,auto lighting plays an important role in the vehicle active safety.In the late 1980s,the invention of high brightness LED makes it possible to use in the automotive exterior lighting.The advantages,such as good reliability,long lifetime,high color purity,fast response,small size and convenience for design,make it more and more popular in the automotive exterior lighting.Nowadays,LED has become a new favorite of automotive fashions.It's widely used in signal lamps,such as turn signal lamps and stop lamps.Besides,it has already been used in headlamps,combining with AFS.

Not only led headlamps ,but also turn singal light ,break light ,reverse light etc.

2016年5月13日星期五

What is led work light ?

LED Work Light is not only used for car ,offroad, it can be used into many kinds application ,such as forklift ,agriculture machine etc


A work light for work or task areas which uses light-emitting diodes (LEDs) as the source of light. LED clusters are mounted on a circuit board which is located in a housing. The LED work lights may be powered by conventional 120 or 240-volt electrical outlets, a DC generator, a battery, a battery pack, or a car adapter.

Work light has LEDs that require heatsink. Desired radiation pattern achieved by using optical components designed to produce beam or LEDs may have beams in different directions. Radiation pattern of LEDs may be changed by refractive-reflective optics or by convex lenses. Convex lenses may be hemispheres, other planoconvex shapes, concavo-convex shapes, or other shapes. Curved surfaces on any lenses may be spherical or aspheric. Ballast to operate the LEDs from line voltage AC or low voltage DC. Work light may contain batteries. The work light may be mounted on a stand. May have accessory mount. May have charging station. May have a paging transmitter to activate a paging receiver in work light. May have openings for heat transfer from heatsink to ambient air external to light

So when choosing the led work light ,you should know firstly where you want to install and use ,what’s the voltage ,battery

Led light:http://www.ddl-lighting.com/

2016年5月9日星期一

Should I Use a Relay with My LED Light Bar?

When installing some led light bars ,sometimes it needs the wiring hardness that usually includes a relay
If your LED light bar came with a wiring harness that includes a relay, then the simple answer is Yes.Otherwise, it depends. The purpose of the relay is to reduce the current load on the switch. If the switchs current rating is more than the current draw of the light bar, then directly wiring to the switch is fine. However, give yourself some leeway by using a switch whose amp rating is 50 percent higher than that of the LED light bar. See our LED wiring guide, to see some in depth info regarding wiring.
Once you have mechanically installed your new LED light bar, it is time to give it a steady supply of electrons so it has a steady supply of night vanquishing power. Learning how to wire and LED light bar correctly ensures reliability and avoids unsafe operating conditions or damage to your vehicle.
Relay is safety for the switch and the power of the circuit 

2016年5月4日星期三

Flood, Spot or Combo – Which LED Light Bar Do I Need?



When yo are choosing a light bar for your truck ,offroad ,do you know whats the beam pattern you need?
Unlike standard screw-in home bulbs, which throw light out in all directions, LED light bars concentrate their light in one direction.
The way the light beam is formed depends on each LEDs reflector and the shape of the lens. Modern light bars use computer-aided designs to achieve specific lighting patterns.
The lighting pattern trade-off for light bars is between distance and beam width. For the same luminosity, more distance requires less beam width and vice versa. When a design favors a wider beam width, you have a flood light. More distance is achieved by narrowing the light beam into a spot pattern.
A flood LED light bar typically has between 40 and 120 degrees of beam width.Spots are around 10 to 30 degrees. Keep in mind that flood and spot degrees vary between different models of led light bars.
So which one is best? It depends on the application. Both are useful and a common choice is to buy one of each or purchase a combo bar that has spot and flood functions combined.
A combo works by assigning the jobs of the spot and the flood light to different sections of the light bar. It can do this by dividing flood and spot reflectors along the bars length or by splitting the functions between rows. The best LED light bar of one manufacturer allows you to custom design your flood to spot ratio with swappable reflectors.
Spot beam pattern with long length ,Flood beam with wide width. Combo is the combination of spot and flood ,will be good for choice of your led light bar.