Choosing among sensors, modules & components usually comes down to a basic fork: do you need a broad supply of parts for several small circuits, or one specialized module that adds distance sensing? The Electronic Components Kit and BTLIFE TFS20-L LiDAR module answer those needs differently. Here is the short path: buy the kit for component variety; choose the LiDAR module when measured distance is the job.
Quick verdict
Choose the Electronic Components Kit 1390PCS LED Diodes Resistors Electrolytic Capacitors for a varied electronics workbench. It brings LEDs, resistor values, and capacitor assortments together. Choose the BTLIFE-UART IIC I2C Miniature Lidar Sensor Module TFS20-L when the build specifically needs distance measurement. The listed price spread is $12.57, so the decision is mainly about scope: a broad component assortment versus a dedicated sensing module.
At-a-glance comparison
| Comparison | Electronic Components Kit | BTLIFE TFS20-L LiDAR Module |
|---|---|---|
| Listed price | USD 18.05 | USD 30.62 |
| Format and role | 1390PCS component assortment | Miniature single-point LiDAR sensor module |
| Named detail | Five LED colors; 600 resistors; 12 electrolytic capacitor values | UART, IIC/I2C; up to 20 meters; single-point dToF |
Where each product wins
Electronic Components Kit: wins on parts breadth
The kit is the clearer match for circuit work that may move between indicator lights, resistance values, and capacitance choices. Its component-assortment format keeps the purchase centered on parts that can support varied builds, rather than on one sensing task. That breadth is the main reason to choose it, especially when the next project is not yet defined around distance measurement.
BTLIFE TFS20-L: wins on dedicated distance sensing
Distance-sensing builds are where the BTLIFE unit makes the strongest case. Its title identifies a LiDAR sensor module, directly addressing a project looking for a measured-distance input. The compact, single-point format keeps the choice focused; select it when that role matters more than stocking discrete parts.
Product notes
Electronic Components Kit 1390PCS

At USD 18.05, the Electronic Components Kit 1390PCS LED Diodes Resistors Electrolytic Capacitors is the practical pick when a build needs a spread of passive and indicator parts rather than one sensing function. Its description lists five LED colors, 600 resistors across 30 values, 120 electrolytic capacitors across 12 values, and 30 kinds of ceramic capacitors. That mix supports varied circuit work without narrowing the purchase to a single module. The limitation is focus: the kit is centered on discrete parts, so it is not the natural pick when the build's defining task is the measured-distance function described for the BTLIFE unit. Choose it for component breadth and the lower listed price.
BTLIFE TFS20-L LiDAR Sensor Module

At USD 30.62, the BTLIFE-UART IIC I2C Miniature Lidar Sensor Module TFS20-L 20Meters Micro Single is the focused choice for a build whose main input is distance. Its description identifies a compact, single-channel dToF module with a range of up to 20 meters, UART and IIC/I2C interfaces, reflectivity correction, and sunlight resistance described at 15m@100Klux. Those named capabilities give it a clear reason to choose when a serial distance sensor is the core requirement. The limitation is scope: its title and description define a single-point sensing module rather than a mixed supply of LEDs, resistors, and capacitors. The $12.57 spread over the kit is also important to weigh.
Final choice by use case
- For broad electronics builds: choose the Electronic Components Kit, because its LEDs, resistors, electrolytic capacitors, and ceramic capacitors address a range of component needs.
- For distance measurement: choose the BTLIFE TFS20-L LiDAR Sensor Module, whose title and description are centered on single-point ranging with UART and IIC/I2C interface terms.
If the project could use either direction, decide by the first capability the circuit must add: a varied supply of discrete parts or a distance reading. The kit is the more direct match for assortment-led work; the BTLIFE module is the more direct match for a sensing-led build.