Heavy ceramic substrate LED lamp (Patreon)

Published:

2023-03-02 05:40:34

Imported:

2023-03

Content

An odd find on eBay. It's a lamp that uses a thick and heavy ceramic PCB for the LEDs to suck the heat away from them quickly for convection air cooling.

It was unrealistically cheap for what it is, making me wonder if it was a listing error or stock being dumped. But further examination of the listings from the same seller suggest that they are encouraging sales for eBay visibility and then nudging the prices up based on demand.

Here's a link to the sellers UK eBay shop, noting that they may have other shops on eBay's other country specific sites. These lamps are 220-240V models. They may do 120V versions too.

https://www.ebay.co.uk/sch/i.html?_ssn=sansi_eu01&store_name=sansieu

I also placed a snipe on an auction for an RGB floodlight with lots of smaller ceramic modules, won it at a low price and then TWO arrived!

I've ordered a few other variants for exploration.

If you're in the UK and want some then buy them now before the prices get jacked up.

https://www.youtube.com/watch?v=12AqK4yvtTA

Files

Inside a ceramic lamp (with schematic)

This is definitely a very unusual and well designed lamp/globe/bulb. The ceramic LED substrates are not new, but this is a very solid and intriguing design intended for general use. The cost was suspiciously low, to the point I thought it was a listing error, but further examination of the other listings suggests that they are trying to get established on eBay by luring people in with low prices and then nudging them up according to demand once the product sales have started flowing. It's notable that the highest prices were for popular lamps that are clearly being bought for indoor plant growing. Here's a link to the UK eBay seller I bought my lamps from:- https://www.ebay.co.uk/sch/i.html?_ssn=sansi_eu01&store_name=sansieu Searching for Sansi on eBay or other sales sites may find them in other countries. I've ordered a few other lights from them to check out. Notably the versions with smaller clusters of LEDs on lots of individual ceramic modules. They have taken an interesting universal approach to the lamp base type by making them all E27 Edison screw, and including BC22 to E27 bayonet cap adaptors. The ceramic LED substrate is very chunky. It adds a lot of weight to the lamps. This one weighed 110g vs a common aluminium core lamp weighing 27g. If you enjoy these videos you can help support the channel with a dollar for coffee, cookies and random gadgets for disassembly at:- http://www.bigclive.com/coffee.htm This also keeps the channel independent of YouTube's algorithm quirks, allowing it to be a bit more dangerous and naughty. #ElectronicsCreators