The Mean Well HLG line is the undisputed king of drivers in the DIY LED grow light world. The goal for this series of videos is to provide a complete breakdown of everything you need to know about them, whether you’re totally new to DIY LED, or a seasoned vet. We’ll be covering:
- Constant current vs. constant voltage and the pros and cons of each
- Series and parallel wiring, and when you might need to use each type
- A-type vs. B-type drivers and some considerations you’ll need to make when picking between them
- Dimming single and multiple drivers
- Reading the data sheets and applying the important specifications
- Matching any LED to a CC and CV driver
Part 1 of this series provides an overview on the different types of drivers within the HLG line and focuses on constant current models and series wiring.
I’ve been working on a little experiment lately.
I’ve got got 3 little 2’x2′ spaces set up in the basement, and each of them has a single Quantum Board in it. The first space on the left is a 4000K 80 CRI board, the second in the middle is a 3000K 80 CRI board, and the third is a 3000K 90 CRI board. Each of the 3 spaces has 4 jalapeno plants in it from the same pack of seeds, and I’m feeding all 12 plants the same amount of nutrients from the same batch, at the same time. All 3 boards are getting the same amount of power and are hung at the same height.
We’ve officially hit the 1 year mark and what better way to celebrate than giving something away? Up for grabs is a brand new Horticulture Lighting Group HLG 65 light, which is great for vegging up to a 2’x2′ space. Just log in to the gleam app below and follow the instructions to enter. The giveaway is open to anyone 21 and older in the USA and Canada (excluding Quebec). The rest of the terms and conditions are visible in the bottom-left of the box below.
LEDGardener.com HLG 65 Veg. Light Giveaway
It can be a pain in the ass having to sort through a bunch of data sheets to find what you’re looking for, so I’ve compiled all the relevant specs for Mean Well Constant Current and Constant Voltage HLG series drivers into a couple spread sheets. I’ve also pulled data from their test reports – you’ll see info from the specification sheet marked “SPEC” and then info from Mean Well’s testing, marked “REPORT”. You’ll notice that usually these drivers are capable of doing a little more than they’re rated for, however this is often for the “A” type driver, on which you are able to adjust the voltage or current higher than you can on the “B” type.
Here is the constant current sheet.
Here is the constant voltage sheet.