High Pressure Sodium Light Bulbs
High Pressure Sodium Lamp Specifications
| Wattage
|
Shape |
Model# |
Base |
CRI |
Color |
MOL (in) |
Dia. (in) |
Burn Position |
Hours |
Application |
Warranty |
Case Qty |
| 35W |
ED17 |
HPS-35 |
Medium |
22 |
2000K |
5.44 |
3.38 |
U |
16,000 |
Enclosed |
1 Year |
12 |
| 50W |
ED17 |
HPS-50 |
Medium |
22 |
2000K |
5.44 |
3.38 |
U |
20,000 |
Enclosed |
1 Year |
12 |
| 70W |
ED17 |
HPS-70 |
Medium |
22 |
2000K |
5.44 |
3.38 |
U |
20,000 |
Enclosed |
1 Year |
12 |
| 100W |
ED17 |
HPS-100 |
Medium |
22 |
2000K |
5.44 |
3.38 |
U |
20,000 |
Enclosed |
1 Year |
12 |
| 150W |
ED17 |
HPS-150 |
Medium |
22 |
2000K |
5.44 |
3.38 |
U |
20,000 |
Enclosed |
1 Year |
12 |
| 250W |
ET18 |
HPS-250 |
Mogul |
22 |
2000K |
9.65 |
2.20 |
U |
20,000 |
Enclosed |
1 Year |
12 |
| 400W |
ET18 |
HPS-400 |
Mogul |
22 |
2000K |
9.65 |
2.20 |
U |
20,000 |
Enclosed |
1 Year |
12 |
| 600W |
T15 |
HPS-600 |
Mogul |
22 |
2000K |
11.06 |
6.62 |
U |
24,000 |
Enclosed |
1 Year |
24 |
1000W |
ET25 |
HPS-1000 |
Mogul |
22 |
2000K |
15.06 |
3.10 |
U |
20,000 |
Enclosed |
1 Year |
12 |
How do I know my HPS Bulbs need to be changed?
When the high pressure sodium lamp starts to cycle (turning off and on), which is caused by a loss of the element sodium in the arc of the HPS Bulb. Sodium is a very reactive element, most of it is lost when migrating through the Arc walls (Inner Tube) with a combination with other elements (Mercury). As a result, High Pressure Sodium Bulbs can begin to start at a low voltage compared to other lamps but as they warm up during the operational mode, the internal Sodium gas pressure within the HPS Light Bulb's arc tube goes up and a higher voltage is needed to maintain the arc discharge. As the high pressure sodium light bulb gets older, the operating voltage for the arc will eventually rise to go beyond the maximum voltage output by the HPS Ballast. As the Sodium bulbs heats up to this point, the inner arc fails and the bulb goes out. When the arc is out, the HPS light bulb gets colder again, the gas pressure in the bulb is reduced, and the High Pressure Sodium ballast can once again cause the arc to re-strike. This is why your Sodium bulbs turns on for a while and then goes out, repeatedly.
What color are HPS Light bulbs?
High pressure sodium (HPS) light bulbs are smaller (in most cases) and contain trace elements such as mercury, and produce a deep pink ember when first started, and a orange with a tint of Pink light when warmed up and operational. It is not uncommon for HPS bulbs to produce a bluish white light between start up and operational mode. This is caused by the mercury being heated up before the sodium in the arc is completely heated up.
Where are HPS Light Bulbs used?
High Pressure bulbs are used for Security Lighting, Street Lights and Parking Lot Lighting. In the past 20 years HPS Grow Bulbs have become extremely popular in the Hydroponic Industry.
