DragonLight 50W Super Bright Corn LED Light Bulb(350 Watt Equivalent) - E27/E40 Large Base LED Lamp - 6500K Daylight 6000 Lumens for Large Area Commercial Ceiling Lighting - Garage Warehouse Workshop

Bulbs used to convert existing faulty 150watt metal Halide car park lights to LED. Light levels excellent and running costs only 33% of old lights. I replaced a number of lights this time last year and they are still burning as bright as ever. The savings in electricity have exceeded the cost of the bulbs, so they have paid for themselves within 12 months.

I bought this to replace my dead 100W bulb on my front porch and was excited to see 500W in action. However, once installed, it was maybe twice as bright at best, certainly not what I'd expect a 500W bulb to be. Disappointed but will keep it as it is. Not worth the effort to return and purchase another 100W bulb.update: I've upped this to 4 stars as its still going strong 2 years on.

Very bright but they make a fan noise and I'm guessing that's to cool them down. We used them in our shop with 12ft ceiling and we have had them for 4-5 months now and they are a way better solution than regular 300w bulbs.

i didn't know there was a fan built into this thing. maybe it was written and i forgot. anyway, fan works and the light screws in a regular light socket. fan isnt annoying. light is brighter than the sun. seriously... dont look at it when you screw it in place.

If you plan on using this for a living space or as an indoor plant light understand it is actively cooled and there is a fan inside the heat sink. After around two weeks of use the fan became damaged and made a very loud scratching sound, which made it intolerable to have in the house. I'm sure it could work well for a garage/warehouse light - too loud for much else though.