What can we do to reduce the impact of afterglow from the beam of led work lights

In some specific scenarios such as port navigation, afterglow from beam of optical lens of led work lights might be a dangerous issue for safety of boats and ships.  Even for a short period, the afterglow might blind the eye sights of drivers especially when the ships or boats enters the waterway of port.

With over 17 years hands on production experiences, our engineers adopt laser led chips with faster decay times. The said led chips have phosphors that have a quicker decay. Also, our LED driver ic incorporate driver circuit and features that help to rapidly discharge any residual energy.For a more hands-on approach, our engineers will add a bleeder resistor in parallel with the led or the capacitor in the led driver circuit. This said resistor provides a path for any stored energy to dissipate quickly after the power is turned off. Besides that, a relay with a normally closed contact will also be used, the relay connects a small load resistor across the LED circuit.

In doing so, the power switch might be automatically activated while the afterglow is not seen. Remember to choose a high quality power switch, a slow-acting or slightly faulty power switch might not be completely cutting the current immediately, which might result in a gradual dimming that appears like afterglow.

In additional to electronic improvements, inside shades that are installed near optical lens might be also helpful, which can help block and shoot the beam in the same direction without any mixed reflection.

It is really a challenge to completely eliminate the afterglow due to the nature of led technology, our above proven suggestions might offer workable solutions to minimize the impact of afterglow.