In order not to keep the additional wiring to connect the auxiliary electrical appliances at work using portable lamps, enough cartridge “carrying” to install a homemade adaptor as shown in the figure. For the manufacture of the adapter is used the lighting cartridge, in which are drilled three holes: one in the bottom under peeled from the glass and glue the cap the blown bulbs and the two side under the plug. Before you glue the base with epoxy resin in the bottom, it is soldered from the inside of a flexible insulated conductor with a length of 45 — 50 mm.
Contacts under the plug pins are made of brass strip with thickness of 0.5 mm and the clamping plate, and two M3 screws of different lengths are attached to the ceramic support with the contacts under the lamp. Moreover, the short head of the screw being located in a special recess securely locks the contacts from turning.