Honoson 20 Pieces Miniature Screw Tiny Light Bulbs Replacement E10 Mini Light Bulbs E10 Socket Miniature Flashlight for Physical Electrical Experiment Screw Base(3.8V, 0.3A)

These are perfect little 6V incandescent bulbs for testing basic 6V power paths, etc.I also tried one in a big 6V Lantern I have, but since these hvae screw bases instead of bayonet bases, I had to fashion a collar out of steel/copper wire to let the screw base screw in, and have the steel collar play the part of a bayonet stop... but it worked just pefectly for that, too.Possibilities are endless... lots of different basic electrical projects these can be used for.And a lot of them at a good, fair price, too!Excellent!

I purchased these bulbs to use in a Mr. Christmas lighted musical bells of Christmas decoration and they work fine. I was a little worried because the ornament specifically says you should only use Mr. Christmas replacement bulbs, but this ornament is old and the bulbs are very expensive. I have used these bulbs in the decoration throughout the season and they have not given me any issues. Yay!

They came in safe packaging and were in tact. I like the little storage container they came in.

Review for Honoson 3.8V and 6V bulbs.These bulbs are at best an average value at around $0.30 each. They are fairly rough in fit and finish compared to a name brand bulb I have in inventory retailing for $0.95. But my name brand supplier ran out and isn't restocking. The days of the incandescent bulb of all sizes are numbered. So get some while you can.I received 20 bulbs in a plastic box. I like that because it's small enough not to clutter the shop but large enough not to get lost.One of the 3.8V bulbs was DOA with no obvious reason. The filament looks whole so the base leads must be at fault. All 6V bulbs worked as expected.8 of the 3.8V bulbs have wildly off-center filaments (see photo) that will be very noticeable depending on your application. 3 of the 6V bulbs also have way off-center filaments.11 of the 3.8V bulbs look good with bright, centered filaments. 17 of the 6V bulbs look good but remember that the illumination is the same for 6V and 3.8V. You won't get twice the illumination. The 6V bulbs are not as efficient as the 3.8V bulbs.At 3.8V the current drawn varied between 250mA and 280mA which is close enough to the rated 300mA but is still a large variation. For the 6V bulbs the current draw was pretty consistent at 470mA.Brightness varied noticeably between bulbs but not enough to be a concern for my application.Each of the 3.8V bulbs I received had a concerning green residue on the base (see photo) that looked a lot like copper corrosion. I was able to remove the green residue with a rag and 99% alcohol. Under close inspection the green residue appears to be leftover adhesive from when the bulb was glued to the base (see photo).The soldering on the base and center conductor are very rough with a lot of variation between bulbs and several with incomplete coverage.Overall these bulbs are an average value for the price. Get some while they are around for your vintage toys and games. It is unlikely that an LED will have equivalent color or spread of illumination that these incandescent do and won't look right. Some electronic circuits depend on the negative resistance response of an incandescent bulb and won't work with an LED. Get some before they are outlawed.Also: I wish I could have written a separate review for the Honoson 1.5V bulbs. These are a great value. All the 1.5V bulbs I received had centered filaments, bright and well finished bases, good solder joints, and very consistent brightness and current draw of 280mA. These were a very good deal.

I bought these for a school activity and the bulbs did not last long when connected to the bulb holder and battery pack. Students connected the bulbs to make a closed circuit and after a few kids taking turns the bulbs did stopped lighting up. The had a dark tint on the top of the bulb! Very disappointing to know that I had wasted my money for bulbs that were basically single use.

Nice to have my mini projector back in service

Everything was as expected and I am very pleased with this purchase!

The regular mini book lights are expensive. Thought the price on this was a bargain. Two bulbs lasted a few minutes. Not sure how the other bulbs will last.