You have no clue. Go through the LED section. Every experienced DIY grower easily exceeds 1g/w. I know Luddites swear by HID and they work great it's true. In certain scenarios they may still be the best option. But they are not as powerful, efficient or as spectrum focused as led. Their time is passing. Their tech has been at it's climax for years. Watt for watt an led lamp will crush ANY HID handily. A state of the art led rig, watt per watt can produce close to double the amount of photons. Plants grow on photons not tired out beliefs