Member Reviews: C. Crane GeoBulb LED Light Bulb

This LED lamp took nearly a year from product announcement to first shipment.  Initially it was claimed to put out 800 lumens while consuming under 8 watts, a breakthrough in efficacy at the time.  Final specifications do keep it consuming under 8 watts (7.5), but only putting out 446 lumens for the Cool White version, and significantly less for the warmer colors (what they call "Soft White" and "Warm White").  This is a drop in efficacy from the initial claim of over 100 lumens/watt to just under 60 lumens/watt.  This combined with the less-than-average lifetime claim of 30,000 hours, and high initial cost, give it a cost-per-megalumen-hour figure no better than incandescents (around...

These bulbs are ok, but not perfected yet. The "warm" version emits a very pleasant light. I purchased one about a year ago and it works as-advertized except for one area. The product description states: "the GeoBulb has no mercury, turns on instantly, creates no humming sound, and can be used in colder temperatures" The part about the huming sound is a bold-faced lie. The geo-bulb II emits a humming sound audible about 8 feet from the bulb. I contacted C.Crane after purchasing and they said some sound was normal but sent me a replacement in case mine was defective. The replacement bulb made just as much sound as the first one. The sound is not terribly loud, but forget...

Bought a few of these lamps- very expensive. I love the design, but the second I turned it on I wasn't impressed. The LEDs are spotty and directional leaving shadows on the sides and below the lamp. It was humming and I didn't have it on a dimmer. If you look at the lamp from above it is bright, so the only place I could put them was in a ceiling fan where the lamps face down. Again, great design, just not ready for a direct A19 replacement in most applications.