ReviewsCold Cathode

uxcell Common Cathode 11 Pin 3 Bit 7 Segment 0.89 x 0.55 x 0.28 Inch 0.35\ Red LED Display Digital Tube 5pcs

3.Glassy carbon electrode is one of the widely used working electrodes. It is a good inert electrode with good conductivity, high hardness, high finish, high hydrogen overpotential, wide polarization range and chemical stability. It can be used as inert electrode for anodic stripping, voltammetric determination of cathode and variable valence ions, and can also be used as chemically modified electrode.
4.The glassy carbon surface must be mirror and clean. Since the surface of glassy carbon is easily polluted by some organic metal compounds, which seriously affects the measurement (no peak, no impurity peak and no recurrence), it must be cleaned before measurement.
5.There are three main maintenance methods, chemical method 1. Nitric acid immersion and scrubbing. 2. Soak and scrub with ammonia water, anhydrous ethanol or acetate 1:1. 3. It can also be scrubbed with alcohol and then soaked in 6nhcl or 4nho3. Electrochemical treatment: repeated polarization (reset scan) (anode cathode to cathode) in the voltage range of + 0.8V - (- 1.8V (0.5mkclph7 except o2i).

Purity: W ≥ 99% . Dimensions: diameter:0.04-0.1mm(Buy on demand) , length:1m. Package: 1 x Tungsten wire.
Tungsten and its alloys are widely used in electronics and power industry because of its strong plasticity, low evaporation rate, high melting point and strong electron emission ability. For example, due to its high luminous efficiency and long service life, tungsten filament is widely used in the manufacture of various bulb filaments, such as incandescent lamp, iodine tungsten lamp, etc,.
Tungsten wire is used to make direct hot cathode and grid of electronic oscillator tube and side hot cathode heater in various electronic instruments. The properties of tungsten make it suitable for TIG welding and other electrode materials similar to this kind of work..
It is widely used in aerospace, aviation, oil drilling, electrical instrument and other industries, such as manufacturing heat sink, balance weight of control rudder and contact materials of switch, circuit breaker, spot welding electrode, etc..
We are a supplier of high quality metal materials. We can provide you with the materials you need. You can contact us to get any materials you need.

Super Bright 9 LED Flashlights: Material is made of aluminum and covered with rubber, which is soft to the touch and durable. Provide you with plenty of light in the dark night and last for a long time..
Easy to Carry: Kid flashlight are so handy and lightweight to keep in a desk drawer, car, or purse. Nylon lanyard is convenient to hang in any place. Ideal for every day carries and use in all kinds of indoor and outdoor activities..
Various Colors: The package includes Total 4 Packs of 9 LED Flashlights, green, yellow, blue, pink. Runs on 3 AAA batteries but Not Included. Simple on/off push button operation which is on the back of the flashlights..
Kindly Note: Please notice anode and cathode on the battery carrier when installing the batteries. And be sure to distinguish the top(Anode) and bottom(Cathode) of the battery carrier, the flashlight won't work if the carrier is inserted upside down..
100% satisfied: If you have any disappointing part, after-sale team will solve your problem and provide satisfied service within 24 HOURS..

【Super Bright 9 LED Flashlights】 Material is made of aluminum and covered with rubber, which is soft to the touch and durable. Provide you with plenty of light in the dark night and last for a long time..
【Easy to Carry】 Kid flashlights are so handy and lightweight to keep in a desk drawer, car, or purse. A nylon lanyard is convenient to hang in any place. Ideal for everyday carries and use in all kinds of indoor and outdoor activities..
【Widely Use】 Runs on 3 AAA batteries but is Not Included. The simple on/off button operation is located on the back of the flashlight. The mini flashlight is suitable for outdoor activities, hiking, adventure, camping, night fishing, walking, hunting, etc..
【Kindly Note】 Please notice the anode and cathode on the battery carrier when installing the batteries. And be sure to distinguish the top(Anode) and bottom(Cathode) of the battery carrier, the flashlight won't work if the page is inserted upside down..
【100% satisfied】 If you have any disappointing part, the after-sale team will solve your problem and provide satisfactory service within 24 HOURS..

HOME THEATRE QUALITY: The Pyle headrest monitor offers your family and other passengers top quality entertainment with its 7-inch TFT/LCD widescreen monitor. Control the action with the included wireless remote & built-in buttons..
KEEP KIDS ENTERTAINED: The 7-inch headrest monitor will keep children occupied on short trips and long car rides. Either mount it in the back or front for hours of happy silence!.
MOBILE HOTSPOT: Turn your vehicle into the ultimate hangout. Connect added devices like DVD player and gaming systems via video inputs..
ACCESSORIES KIT INCLUDED: The headrest monitor kit comes with everything you need to get started including a wireless remote, headrest shroud and a universal stand mount..
QUALITY VIDEO PERFORMANCE: The universal DVD headrest was professionally designed for the best performance. It is backlit by a cold cathode filament for a high contrast ratio with a TFT active matrix display..

EASY TO USE: Just sweep this portable hand sanitizer across your home or office to disinfect furniture, fixtures, utensils, laundry, bedding, devices, toys, and more in seconds.
HIGHLY PORTABLE: Our small 5-ounce UV sterilizing wand fits easily into coat pockets, handbags, and suitcases for convenient use in the car, at work, and while traveling.
SAFE AS DIRECTED: This UV wand doesn't leave any damage, residue, smell, or secondary pollution.
only take care to point it away from humans and pets and not look directly at the LED beads during operation.
99.9% DISINFECTION: CO-Z's lightweight sanitizing wand uses cold-cathode ultraviolet light and gives you a safer and cleaner living environment. EPA Est. No. 96307-CHN-1.
SATISFACTION GUARANTEED: Order this handy ultraviolet light sanitizer for your home or travel with your peace of mind assured by CO-Z's usual strong warranty and friendly 24/7 customer service.