China manufacturer of magnetic ballasts for metal halide flood lights & hps flood lights

Lamp bases, Folk habit called “lampholders“. Since the government publication of the incandescent lamp holder standard, all renamed lampholders called metal head part on the light bulb lamp. Optional screw lampholders, use screw bulb trial, after When the bulb precession lampholders, Cap-metal part of the bulb should be exposed. Secondly, look at the part of the screw of the lamp holder is not fixed, otherwise do not have access to a few back, the screw will With the Lamp spin in turn rotate, thereby touching the the lampholders center metal spring, causing a short circuit. Socket lamp holder, first look at the lamp inside of two metal pole insulated from each other if the good metal column should have a flexible, retractable. Light bulbs and then have to try and see the level of the card slot is appropriate, individual lampholders card slot is inappropriate, the lamp is difficult to load, the screw difficult then loaded, not purchase. The ring-shaped fluorescent lamp electronic ballasts. The spherical fluorescent tubes beautiful style, coupled with electronic ballasts, high luminous efficiency, saving energy, the direction of future development, but the poor quality of some electronic ballasts, resulting in economic losses for buyers. Part of good appearance, light gray plastic gives a good impression, use convenient, as long as you can plug in the socket lampholder, it comes with two flexible card rod, the ring-shaped tube lift up, but this ballast life a short, two months after a succession of problems.