LED Grow lights have replaced traditional HPS (High Pressure Sodium) lighting as the number one choice for growers. There's no bulbs to replace, they give off a fraction of the heat of HPS & they give you more usable light than an equivalent HPS light. If you'd like some help or advice before you buy, you can contact us through the green chat app at the bottom right hand corner of your screen, or you're welcome to call us at the shop on 01268 525805.