Ask for advice on SLR flash sunpak flash AUTO 144D.

Japan's SUNPAK is a well-known flashlight manufacturer.

The agent in China is Zhuhai Focus Photography Equipment Co., Ltd., and I wonder if it will be helpful to find them.

the telephone number is 756-2177288.

144D is an old flash. The old flash has two types: low-voltage trigger and high-voltage trigger. Some people say that high-voltage trigger flash can't be used in digital machines, and they are worried about damaging the electronic circuits of digital machines. There is some truth.

check whether the flash triggered by low voltage and high voltage is fully charged, and the indicator light to be flashed is lit. At this point, use a multimeter to measure the voltage of the contact pin at the bottom of the flash lamp. Below 1 volts, it is a low-voltage trigger, and around 1V is a high-voltage trigger.

In case of emergency, it is better to add a flasher to the flash triggered by high voltage when it is used on a digital computer.