Let me start by saying these CHMLT high bay lights are BRIGHT. Like, 'accidentally-look-directly-at-it-and-see-spots-for-minutes' bright. I installed two in my garage workshop (16ft ceilings), and it's like working under midday sun - perfect for detailing cars or wrenching on dirt bikes where shadows are the enemy.

The 30,000 lumen output is no joke - I retired my headache-inducing headlamps because these illuminate every nook, even reflecting off concrete floors to light undersides of vehicles. The 5000K daylight color makes color matching during paint work surprisingly accurate.

Installation was straightforward with the pre-assembled power cord, though I wish they included an adjustable chain (had to precisely measure my hanging height). The hollow aluminum housing does dissipate heat well during long sessions - mine stayed cool to the touch after 8 hours of continuous use.

Now for the elephant in the room: reliability. My first unit failed spectacularly after 14 months - started crackling like popcorn before emitting smoke (caught it on video). However, CHMLT's customer service deserves praise; they immediately shipped replacements no questions asked. Their 5-year warranty seems legit based on my experience.

Pro tip: These work best when installed in pairs to eliminate shadows. At this price point, they outperform traditional metal halides in energy savings, though you might want to keep your receipt handy just in case.