Satco S3129 ED-17 High Pressure Sodium Lamp, Medium Base Clear, 150W Cleaners Bolt Length: 5"

Bolt Length: 5"

1/4" Round Corner

131 smooth

Faceplate: 1" x 2-1/4"

Includes US40 tool

Satco S3129 ED-17 High Pressure Sodium Lamp, Medium Base Clear, 150W Cleaners Bolt Length: 5"The operational concept behind HID lamps is very similar to that of fluorescent lamps. Electrodes are positioned at either end of a tube, whose chamber is filled with gas and metals such as mercury. An electrical charge passes from one electrode to the other. In fluorescent lamps, this charge creates ultraviolet (UV) light, which converts to visible light once it passes through the phosphors on the tube's interior. In an HID lamp, the electrical arc,