{"product_id":"wanptek-wps1203h-120v-3a-360w-adjustable-dc-power-supply","title":"Wanptek WPS1203H 120V\/3A 360W Adjustable DC Power Supply","description":"\u003cmeta name=\"description\" content=\"Buy Wanptek WPS1203H 120V\/3A 360W Adjustable DC Power Supply online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\n\u003ch1\u003eWanptek WPS1203H 120V\/3A 360W Adjustable DC Power Supply\u003c\/h1\u003e\n\n\u003cp\u003eThe Wanptek WPS1203H is a precision laboratory-grade adjustable DC power supply delivering 0-120V output at 0-3A with 360W maximum power capacity, featuring digital voltage and current display for accurate circuit testing and prototyping. Electronics engineers, technicians, and hobbyists rely on this unit for powering sensitive circuits, LED testing, battery charging, and component characterization where stable, regulated DC power is critical. This supply solves the challenge of providing clean, ripple-free DC power with fine-tuned voltage adjustment for demanding applications that require precision power delivery without voltage fluctuations or current spikes.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp\u003eThe Wanptek WPS1203H operates on a linear regulation principle with a high-capacity transformer and precision voltage regulation circuitry that maintains output stability across varying load conditions. The unit features independent voltage and current adjustment controls, allowing users to set maximum output limits and prevent circuit damage from overcurrent conditions. The large digital display simultaneously shows real-time voltage and current values, eliminating the need for external multimeters during setup and troubleshooting. Input AC voltage ranges from 100-240V, making it suitable for global use, while the output terminals provide both banana socket and screw terminal connections for flexible wiring configurations.\u003c\/p\u003e\n\n\u003cp\u003eWhat distinguishes the WPS1203H is its combination of wide voltage range (0-120V), respectable current capacity (0-3A), and robust protection mechanisms including current limiting, short-circuit protection, and thermal shutdown. The constant voltage and constant current modes enable dual-function operation - users can set voltage limits for sensitive components or current limits for power-limited applications. The compact desktop form factor and efficient thermal management through internal cooling fans ensure reliable operation during extended lab sessions. Built-in EMI filtering minimizes electromagnetic interference, critical for testing RF circuits and sensitive analog electronics.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eAdjustable DC Power Supply\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWanptek\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eWPS1203H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Voltage Range\u003c\/td\u003e\n\u003ctd\u003e0-120V DC adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Range\u003c\/td\u003e\n\u003ctd\u003e0-3A DC adjustable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power Output\u003c\/td\u003e\n\u003ctd\u003e360W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e100-240V AC 50\/60Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay Type\u003c\/td\u003e\n\u003ctd\u003eDual Digital LED Display (Voltage and Current)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Terminals\u003c\/td\u003e\n\u003ctd\u003eBanana sockets and screw terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Features\u003c\/td\u003e\n\u003ctd\u003eOver-current limit, short-circuit protection, thermal shutdown\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eInternal fan-assisted thermal management\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eWide voltage adjustment range from 0-120V with 1V resolution for precise circuit biasing and component testing across diverse voltage domains\u003c\/li\u003e\n\u003cli\u003eDual digital display shows real-time voltage and current measurements simultaneously, eliminating need for external test equipment during setup\u003c\/li\u003e\n\u003cli\u003eAdjustable current limiting from 0-3A prevents damage to sensitive circuits and enables safe testing of unknown devices\u003c\/li\u003e\n\u003cli\u003eConstant voltage and constant current modes provide flexible operation for different load types and protection scenarios\u003c\/li\u003e\n\u003cli\u003eShort-circuit and over-current protection with automatic shutdown prevents catastrophic failures and extends equipment lifespan\u003c\/li\u003e\n\u003cli\u003eDual output terminals (banana sockets and screw terminals) accommodate various connector types and cable gauges for flexible integration\u003c\/li\u003e\n\u003cli\u003eUniversal input voltage 100-240V AC supports global operation without step-down transformers\u003c\/li\u003e\n\u003cli\u003eCompact desktop design with efficient thermal management ensures stable operation during extended testing sessions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eElectronics prototyping and circuit development where variable DC power supply with current limiting is essential for safely powering experimental circuits\u003c\/li\u003e\n\u003cli\u003eLED testing and characterization for determining forward voltage drops, current requirements, and brightness curves across different color LEDs\u003c\/li\u003e\n\u003cli\u003eBattery charging applications for NiMH, NiCd, and lithium batteries where constant current charging profiles must be precisely controlled\u003c\/li\u003e\n\u003cli\u003eComponent testing and troubleshooting where engineers need to apply specific voltage levels while monitoring current draw to diagnose faults\u003c\/li\u003e\n\u003cli\u003eLaboratory education and training for electronics students learning power supply design, circuit analysis, and safe hardware testing practices\u003c\/li\u003e\n\u003cli\u003eAutomotive electronics testing for powering 12V\/24V systems and verifying component behavior under variable voltage conditions\u003c\/li\u003e\n\u003cli\u003eRF and analog circuit development where clean, stable DC power without ripple is critical for accurate measurements and performance validation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\n\u003cp\u003eBegin by connecting the Wanptek WPS1203H to a standard AC power outlet using the provided power cable. Allow 2-3 minutes for internal components to stabilize before use. Set both the voltage and current adjustment knobs to their minimum positions (fully counterclockwise). Connect your test circuit or device to the output terminals using appropriate gauge wiring - banana plugs for the socket connectors or stripped wire for screw terminals. Ensure all connections are secure to prevent arcing or loose contact resistance.\u003c\/p\u003e\n\n\u003cp\u003eTurn on the power switch and observe the digital display. Slowly rotate the voltage adjustment knob clockwise to increase output voltage to your desired level, monitoring the display continuously. If you want to limit maximum current to protect your circuit, adjust the current limit knob to set the maximum allowable current. The supply will automatically switch to current-limiting mode if the load exceeds this threshold. Always start with conservative voltage and current settings, then gradually increase to operating levels while observing the device behavior. When finished, reduce voltage to zero before disconnecting loads or turning off the power switch to prevent transient damage.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between constant voltage and constant current modes on the WPS1203H?\u003c\/summary\u003e\n\u003cp\u003eIn constant voltage mode, the supply maintains your set voltage level regardless of load current draw, useful for powering circuits with varying power consumption. In constant current mode, the supply limits output to your preset maximum current while voltage adjusts automatically to maintain that current, ideal for charging batteries or testing current-sensitive components. The WPS1203H automatically switches between modes based on load conditions and your current limit setting.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan the WPS1203H safely charge lithium-ion batteries?\u003c\/summary\u003e\n\u003cp\u003eYes, the WPS1203H can charge lithium-ion batteries using constant current charging profiles. Set the current limit to the battery's rated charge current (typically 0.5C to 1C of battery capacity) and voltage limit to the battery's maximum charge voltage (usually 4.2V per cell). The supply's automatic current limiting prevents overcharging. However, for optimal battery lifespan, consider using a dedicated lithium charger with temperature monitoring and cell balancing features.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat happens if I accidentally short-circuit the output terminals?\u003c\/summary\u003e\n\u003cp\u003eThe WPS1203H features automatic short-circuit protection that immediately limits output current to your preset current limit value, preventing damage to internal components. The digital display will show maximum current draw while voltage drops to near zero. This is safe operation - simply remove the short circuit and the supply returns to normal. The protection mechanism prevents catastrophic failures and allows safe exploration of circuit behavior.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eIs the output voltage truly adjustable from 0V or does it have a minimum voltage?\u003c\/summary\u003e\n\u003cp\u003eThe WPS1203H output is adjustable from true 0V to 120V. When the voltage knob is fully counterclockwise, the output is effectively zero volts, allowing you to safely connect and disconnect loads without voltage transients. This zero-start capability is important for protecting sensitive circuits during connection.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Tech Depot\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003cli\u003eReturns: 7-day return policy on manufacturing defects only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuy Wanptek WPS1203H 120V\/3A 360W Adjustable DC Power Supply Online in India\u003c\/h2\u003e\n\n\u003cp\u003ePurchase the \u003cstrong\u003eWanptek WPS1203H 120V\/3A 360W Adjustable DC Power Supply\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on \u003cstrong\u003eWanptek WPS1203H 120V\/3A 360W Adjustable DC Power Supply\u003c\/strong\u003e with fast shipping and expert support.\u003c\/p\u003e\n\n\u003cp\u003eOur team in Bengaluru is available 24\/7 to support your journey from product selection to project completion.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48743704363265,"sku":"TES-EV0882758","price":8477.88,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/1-39-314x252.jpg?v=1778062152","url":"https:\/\/techdepot.in\/products\/wanptek-wps1203h-120v-3a-360w-adjustable-dc-power-supply","provider":"Tech Depot India","version":"1.0","type":"link"}