Lithography and chemical etching method for etching, PCB factory, micro-electronics, factory printing use more small circuit printed on a particular base version, the etching use the glue of less than 420nm UV or visible light sensitive, If using a white lamp illumination with ultraviolet light, the result is a fine line edition etching circuit blurred edges, thereby severely reducing the quality of the PCB or the quality of the printing plate. So you must use the yellow safelight.
Philips yellow safety lamp specifically for PCB and so no special lighting requirements of the industry design quality ultraviolet light source. Rid of unique coating 100% UV (the 420nm ultraviolet region following radiation energy is zero), which is currently all Philips models only completely non-UV lamp, do not have any other type of lamp.
Philips yellow safety lamp while maintaining the feel of high brightness and long life. Standard length and start-up circuit, so very convenient to install a replacement. All of the products Philips Netherlands production, CE certification.

Long-term supply of the PHILIPS Philips yellow lamp, anti-ultraviolet UV safety lamp

Model lamp headlight voltage lamp current total length of the luminous flux lumen maintenance at 5000 hours NW Origin
TLD18W/16 G13 59 0.36 604.0 660 75 100 Netherlands
TLD36W/16 G13 103 0.44 1213.6 1580 75 186 Netherlands