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 HPS (high pressure sodium) Grow lights have good spectral distribution. High Pressure Sodium Grow Lights emit the yellow and red regions of the spectrum. High pressure sodium bulbs help stimulate flower and fruit production in plants more efficiently than other grow light sources. It is best to use HPS Grow Lights in addition to or cycled with metal halide grow lights.
| Item No | Watts | Description | Initial Lumens | Glass Size |
| 901510 |
150 |
LU150/55/MOGUL |
16,000 |
ED-23.5 |
| 901515 |
250 |
LU 250 HPS |
28,500 |
ET-18 |
| 901520 |
400 |
LU 400 HPS |
50,000 |
ET-18 |
| 901525 |
600 |
LU 600 HPS |
92,000 |
ET-14 |
| 901527 |
750 |
LU 750 HPS |
105,000 |
BT-37 |
| 901530 |
1000 |
LU 1000 HPS |
140,000 |
E-25 |
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 The Ultra Sun High Pressure Sodium lamps have a Kelvin temperature rating of 2000K which is ideal for the fruiting and flowering stages of plants. It is also an excellent lamp for full term plant growth. These lamps have been specifically engineered for horticulture applications. Ultra Sun lamps are high quality, feature robust construction and have excellent reliability at an economical price. One Year Warranty.
| Item | Watts | Brand | Description | Initial Lumens | Glass Size |
| 901523 |
150 |
Ultra Sun |
150 HPS |
16,000 |
ED23.5 |
| 901529 |
250 |
Ultra Sun |
250 HPS |
29,000 |
ET18 |
| 901528 |
400 |
Ultra Sun |
400 HPS |
50,000 |
ET18 |
| 901526 |
600 |
Ultra Sun |
600 HPS |
90,000 |
T15 |
| 901531 |
1000 |
Ultra Sun |
1000 HPS |
140,000 |
E25 |
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