| EIKO 400&150 watt HPS HID Grow Light Ballast Bulbs | $4.25 |
| 400 Watt HPS Ballast Kit with Reflector, and 2 Bulbs | $74.00 |
| 400 HPS HORTICULTURAL GROW LIGHT 120/240 BALLAST | $56.52 |
| 400 or 600 watt HPS Grow Light Reflector Hood w mh | $37.99 |
| High Pressure Sodium 400 watt HPS Grow Light w 400w | $114.89 |
| ALL NEW 400 watt HPS Grow Light High Pressure Sodium w | $99.99 |
| HPS & Metal Halide 400 watt HPS Grow Light w 400w MH | $164.89 |
| BN 400W 400 W HPS HIGH PRESSURE SODIUM GROW LIGHT LAMP | $11.79 |
| High Pressure Sodium 400 watt HPS Grow Light w 400w | $114.89 |
| BLUE GROW LIGHT mix w/ HPS repl 400 MH conversion bulb | $106.89 |
| ALL NEW 400 watt HPS Grow Light High Pressure Sodium w | $99.99 |
| ALL NEW 400 watt HPS Grow Light High Pressure Sodium w | $111.00 |
| GROW PLANTS: HPS & MH LIGHT @ half power of 400 w lite | $150.00 |
| T8 HO FLUORESCENT GROW LIGHT replaces 400 w MH, T5 HPS | $141.38 |
| T8 HO FLUORESCENT GROW LIGHT replaces 400 w MH, T5 HPS | $153.88 |
| MONSTER T5 FLUORESCENT PLANT GROW LIGHT REPS 400 hps mh | $289.97 |
| 400 Watt HPS GROW LIGHT/PROFESSIONAL MAMMOTH SIZE HOOD! | $138.99 |
| GROW mh & Bloom hps T5 FLUORESCENT LIGHT 400 watt w | $159.99 |
| NEW 400 WATT HYDROPONIC HPS HIGH OUTPUT GROW BULB | $9.99 |
| 400 Watt HPS GROW LIGHT BULB NEW CLEAR 24,000 HOUR! | $27.79 |
| NEW 400 WATT HYDROPONIC HPS HIGH OUTPUT GROW BULB | $9.99 |
| NEW 400 WATT HYDROPONIC HPS HIGH OUTPUT GROW BULB | $9.99 |
| 400 Watt Digital Electronic Ballast MH/HPS 120V | $66.00 |
| HTG 400 Watt HPS Ballast with Socket | $108.50 |
| Metrolight SuperHID 400 HPS ELECTRONIC BALLAST | $5.95 |
| SOLARBURST 400 watt hps High pressure sodium Light bulb | $17.67 |
| NEW UFO LED GROW LIGHT BLUE MH HPS = 400/600W Na Halide | $299.95 |
| SOLARBURST 400 watt hps High pressure sodium Light bulb | $17.96 |
| AIR COOLABLE REFLECTOR HOOD 400 600 1000 hps grow light | $53.00 |
| MYLAR 25 feet ROLL hydroponic grow light 50 100 400 hps | $11.50 |
| COOL TUBE GROW LIGHT REFLECTOR 400 600 1000 watt hps mh | $73.50 |
| THERMOMETER HYGROMETER for 400 watt HPS Grow Light 400w | $9.50 |