This is an unusual Polish metal halide lamp from the R&D Laboratory of POLAM. It was received via a Polish lamp collector without too much information. The suffix 'D' of the name LRJD would normally indicate Daylight colour, however the colour of this lamp is not white. It is about 8000K and slightly greenish. The mechanical construction is almost identical to Osram HQI-T lamps of the 1970s, it is clearly copied from that company's products.
