HPS 600 Watt Grow Light Bulb E39 Up to 40% More Red 1150μmol Ultra PPF Increases Red Concentrated Spectrum 90000 Lumens High Pressure Sodium 2-Pack

Plants are responding well. I used Eye Hortilux but they qult making them. Everyone wants you to go to leds. I don't want to yet because it's mostly the high dollar leds that provide a good harvest. Cheaper leds need replaced every couple years. Must be bright enough and the light must be of good quality because my plants are doing a lot better than I initially thought they would.

Excellent product very well packaged and a fast delivery time. Very good overall and will buy again.

Been a grower for 30 years, ive used em all. This bulb dollar for dollar at 90,000 lumens and my plants have reacted best to these exact bulbs for past 3 years and 7 grows. I use 1 in a susnsystems 6 inch vented hood with glass shield. My quiet inline fan from vivosun sucks the heat right out of that hood. Hps is and always will be far superior to LED lamps that turn on and off so many times per second, we cant see it but the plants can amd you get these ridiculous woody stems at 4 to 5 weeks in the grow stage. Ive had it happen twice and when I grow I cant afford to have problems. Thats why I go hps every time and NEVER have problems. Any questions

So far so good. It seems worth the investment. We have to see after harvest just how effective it was. So far though, it seems to be a great investment.

Great product

Wprked great. Nice dense flowers.

Lasted two weeks. They would not take back

Very bright. I appreciate the sturdy packaging.

It works, just make sure you already have a 600watt ballast