Horticulture Lighting Group - HLG UK EU

Enjoyed the light veg through bloom. Wish there was a dimmer on it but liked it enough that I purchased another and will be running two during my next cycle.

Simple, powerful and quality. Plants love this light I plan to get another to pair in my 4x4 later on Option to connect to the Controller 69 for automation

Love it

Best light ever

Great light

Love the lihht

This is a solid light

Always an amazing light, does what needs to be done

This light deserve highest rating. Its a monster off a light, incredibly powerful with just 650w. It blow my old LED appart! Plants love this light that Diablo produce, its cooler on plans canopy some haw. Light distribution is fantastic , uniformly spread light all across the tent. Huge light fixture! I will recommend this light to everyone who run 1.2mx1.2m tents or 1.5x1.5m. At full power its insane!!

What can I say...after running three SunSystems 315 LEC's with great success in my 4x8 I made the switch to LED's. I did my research, talked to other growers, then decided to go with two HLG's 650R's. I added to each of them HLG's 30w supplemental UV bars which attach directly to the main quantum board...nice clean setup! The thing I liked most about these lights, besides the massive 2.81 umol output, is the fact that you can hang these bad boys a recommended 30"-48" above the canopy depending on stage (I've had them @ 24" during flower and the girls LOVED it!) which is unlike the majority of the other LED's which have much closer recommended hanging heights, which in my mind affects the coverage area. I wouldn't go back to CMH's or with anything else after seeing the results these powerhouses can provide!😎👍

The plant loves this light. She can get closer to it than my other strains. Unlike my other grows I did not have to supplement sunlight into the grow. They stayed in the grow tent and faced no damage from moving around.

This light deserve highest rating. Its a monster off a light, incredibly powerful with just 650w. It blow my old LED appart! Plants love this light that Diablo produce, its cooler on plans canopy some haw. Light distribution is fantastic , uniformly spread light all across the tent. Huge light fixture! I will recommend this light to everyone who run 1.2mx1.2m tents or 1.5x1.5m. At full power its insane!!

Excellent quality American manufactured product with great PPFD spread for my space!

Great light to start, Used this throughout the grow when changing environments. Gets a bit hot.

love my rspec 4 star due to delicacy/my clumsy ass

Awesome lights. The major problem is temperature control. My 5x5 tent gets pretty warm if not regulated. I've no problems in winter but will be problematic if I tried to grow it in summer indoors. Different plants have different reactions to the strong light. Some are cool with getting close to it others need to be farther away so there no light damage. I only had it at 80% power throughout the grow.

Still really liking these lights. Great in veg and flower periods, although we do like to supplement with 6400k and 2700k Sunblaster strip lights during each period.

This light kicks ass and once I turned her up all the say the results were noticeable

Premium lights, a bit expensive though. Each Led-board has been working well for more than 1500 hours.

❤️❤️❤️