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maurits The pump is marked 4.5 - 12 volts, so 12 volts should be okay.

2023-08-24 04:43:10 役に立つ (0)
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Q: What is the third pole on the female contact?

尋ねた Arnror に 2022-09-01 03:35:28

maurits The innermost negative terminal on the socket is connected to the negative pole of your equipment's internal power source (usually batteries), and the outermost ("third") negative terminal completes the negative line to your equipment. When a plug from an outside power source is inserted into the plug, it disconnects the batteries, and supplies its own power to your equipment. (Of course the plug's positive terminal (the centre one) must be connected to the your equipment's positive line.)

2022-09-02 10:33:01 役に立つ (1)
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Q: Why there is no UK plug?

尋ねた Fai00 に 2022-02-01 11:20:23

maurits It seems all the ones with UK plugs have been sold out. Ust get yourself a US to UK adaptor plug. Voltage will be OK since the AC adaptor is rated for 100 to 240 volts.

2022-02-01 12:33:19 役に立つ (1)
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Q: where I can find BTMate app ? Not available in play store

尋ねた kdrmanoj に 2022-01-15 03:45:37

maurits It seems BTMate is an iOS (Apple) only app. Maybe a similar Android based app will also work.

2022-01-15 04:05:42 役に立つ (0)
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Q: can this work to engrave on gold/silver jewellery?

尋ねた BG131049114 に 2021-12-27 08:29:37

maurits Lasers generally do not do well on reflective surfaces, and metal could be a problem for a weakish laser like this. Maybe one can experiment with temporarily painting the surface with paint, and remove it after lasering.

2021-12-28 04:51:55 役に立つ (0)
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maurits No, if you look at the picture of the back of the circuit board, you will see that those holes are connected, thus the same terminal.

2021-10-21 09:30:30 役に立つ (0)
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