Jan 30, 2020 · The length of various cables and junction points also cause a voltage drop which affects the output. Generalising a bit, efficacy for LED grow lights can be broken down to a few categories:.0 umol/J: poor efficacy..3 umol/J: decent efficacy. 1.3 …Application: Fruit and Vegetable, Flowers, Special Crops, Seedling IP Rating: IP65 Emitting Color: Red and Blue Input Voltage:V AC,V AC, 50/60 Hz Power: 400W 480W 600W, 640W, 800W Shape: Linear Multi Bar SpyderWhen youpare the cost of a 1000 watt HPS grow light to that of a 1000w equivalent LED, such as the Gavita Pro LED, it’s no contest in terms of price. The HPS will cost you around , whereas the LED wille in well over $1,000. That’s not to say there aren’t cheaper options out there in the LED market - take Covert LED’s for example.2021 Newest High PPF full spectrum LED grow lights Double Ended for Veg and Bloom hydroponic apollo 6 led grow light, US $ 125 - 135 / Piece, 100, 80, urce from An. on .