I laugh at the energy efficiency portion of questionnaire before I am given opportunity to review these bulbs. 100 watts per hour says so on the box, that is what is used. Two thumbs up. I am on the third of the 6 purchased in november of 2022, I have no complaints. there are power spikes, and outages that let the bulb cool in sub temps here. I run them fulltime all winter long in reflector bases aimed at iron pipe elbows where water moves thru, no insulation, insulation only invites mice. Yes they make heat. Any power exchange makes heat, that is the point. They last twice as long as any that I have found from the past 10 years of people claiming to be intelligent who are trying to get you and I to buy light emitting diodes for lighting, those people trying to make your decisions for you are probably not your friends. Now local stores don't carry basic incandescent bulbs. I am glad of these bulbs and I would buy them again.

I was concerned that these no-name lightbulbs might be dead on arrival.

They weren't. We installed five in a ceiling fixture. All work just fine. The are not quite as bright as the last batch of 100W regular incandescent bulbs we had, but they more than bright enough for work purposes. The color temp is on the warm side, but not annoyingly so.

Hopefully, the bulbs will last for a long time.

I'm going to order another package, so we have backups.

Jerry

Good, small 100w Edison base lamp

Brightness: 5 stars
Life: 4 stars
Odor: 3 stars
Reptile usage: 5 stars

Bought this pack of bulbs trying to find a better alternative to the reptile heat bulbs offered by other brand names. Those bulbs are $5-$9 each and might last 4 months on 12 hrs a day.

I setup the first bulb for my bearded dragon in Aug 2020. On 12hrs each day every day. It lasted until Feb 2021. That is a great value in my book. At 10 inch distance from the bulb I was getting a consistent 95-100 degrees F which is what I wanted for my hot spot. So far no complaints except the following: read below

They need a burn in period of a couple hours before I feel comfortable using them inside. I'm not smell sensitive, but the silicone coating first time being heated up has some odor. It doesn't give off any smoke or anything, you just will know it's getting that coating set. I have a light set outside that I just exchanged the bulbs after about 2 hours and there is no more smell. I then bring it inside and put it in the enclosure light fixture.

Overall I am happy and will buy another set in a yr or so when these finally run out singing multiple bulbs across several enclosures. What I won't be doing is running to the animal-mart every 2 months for a $10 bulb.

Exactly what I wanted very pleased customer. NO complaints at all. Delivery earlier than expected. Thank you Amazon ðŸ‘