trailanimal
son of soil
yeah, takes light to make resin!What up @trailanimal? My top recommendation for a 2 x 4 would definitely be a P600, but make sure you have enough height! THat light is intense!
You can't go wrong with the P300 or P450 for that space either. I'm confident you'll be happy with the result with any one of those lights.. Remember, as a good grower you can expect to get around a gram per watt. More wattage more dank and stank!