10pcs blue light

10pcs Blue 0.36 Inch DC 0-30V 3 Wire LED Volt Meterr Digital Display Panel Volt Meterr Feature: The black line connected to the public negative electrode, red line connected to positive pole of power supply, yellow line connected to positive pole of tested power supplyMaterial: Plastic ShellDisplay Digit: 3Measuring Range: DC 0-30VWorking voltage: 4-30VDisplay Size: Approx 2.3cm x 1.2cm / 0.91' x 0.47'Overall Dimension: Approx 3.4cm x 2.2cm x 2cm / 1.34' x 0.87' x 0.79' (L x W x H)Cable Length: Approx 20cm / 7.87' Package Included: 10 x Blue Digital LED Display Voltmeter

10Pcs CD4017 Light Water Kit Voice Control Water Lamp Kit Electronic DIY Kit Feature: The circuit is easy to install, just need to correct welding, after completed soldering, you can normally use it. The microphone turn the external sound into a current signal, amplified by a transistor Q1 into the integrated circuit U1. U1 has 10 output terminal, respectively control an LED light tube. The volume and frequency of the sound control the brightness and the number of the light emitting brightness of the luminotron. The louder the sound, the brighter the LED, the more number of light. Note: We don't offer any manuals, only has schematic, please note about this before you buy it, sorry for the inconvenience. Package included: 10 x CD4017 Light Water Kit

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http://mysku.ru/blog/china-stores/41277.html Specification: Product name: 445nm Blue light Laser Pointer Pen Body material: Aluminum Surface treatment: Anodicoxidation Treatment Battery: 2 x 16340 Battery (included) Operating voltage: DC 7.4V Switch Type: Clicky Switch Location: Tail-cap Wave length: 445nm Beam dimension: please contact cuctomers service online. Laser color: Blue Body color: Silver Focus mode: Adjustable Preheat time: Best Operating temperature: +15ãÄ~ +35ãÄ Facular diameter: 6M place Power: please contact cuctomers service online. Size: 138mmx27mmx27mm Features: 1. Actual photo shown,Simple and easy to use. 2. Use your laser pointer to point at any desired targets on projection screen, video. 3. Power saving, lightweight, suitable for putting in your pocket or handbags. 4. This laser pointer can be used for presentation, teaching indicator, children amusement and more. 5. This high quality laser pointer adopts the latest technology optics and microelectronics. 6. Press-button switch at the bottom, no need to keep holding when use it. 7. Portable size and science shape design. Warnings: 1. Avoid direct eye exposure to laser beam — exposure to the eye can cause permanent damage. 2. The length of working time must not exceed 3 minutes.If reaching 3 minutes it must be paused for 2 minutes. (Professional suggest. Please must observe this rule to protect your laser) 3. Please keep this out of the reach of children. 4. When not in use, it is always a good idea to remove the battery — it is is a good way to ensure children do not have access to it. 5. Do not whack or drop it. 6. Do not let dust fall in the light hole. 7. Non-demolition. 8. In some countries, laser pointers such as this may be illegal to own and/or use (especially the higher powered ones). Therefore, by purchasing these products YOU (the customer) accept all responsibility and liability to determine and fulfill the requirements and limitations of use or resale of these products in accordance with your country's laws and regulations. In the event of resale, you also agree to include this notation in the product description, so that any potential buyer can also make an informed purchasing decision. Note: Positive pole — outward, negative pole — inward (Please make sure you install the battery in the right way, otherwise it will cause the short circuit of the laser, if you are not sure, you can refer to the picture, thank you!) Package included: 1 X Laser Pointer Pen 1 X Protect Glasses (Wear it before use the laser pointer.) 1 X Charger 1 X Laser sword 2 X 16340 Battery 5 X Star Pattern Converter,,,,,,,

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