| Quantity | 3+ units | 10+ units | 30+ units | 50+ units | More |
|---|---|---|---|---|---|
| Price /Unit | $12.14 | $11.89 | $11.52 | $11.03 | Contact US |
Waveshare ESP32-S3 Development Board ESP32-S3R2 GEEK 1.14-inch LCD ST7789 for USB Dongle Support 2.4GHz WiFi BLE5
$17.68
M5Stack M5GO IoT Starter Kit V2.7 High Performance IoT Start Development Kit ESP32 2-inch IPS Screen for Arduino
$96.24
M5Stack Glass2 Unit 1.51-inch Transparent OLED Extended Screen Unit for SSD1309 Driver Solution
$34.22
3W 5V Efficient Solar Panels Monocrystalline Silicon Wafer Solar Panel 600MA Epoxy Board
Specifications:
- Rated power: 3W
- Operating voltage: 5V
- Operating Current: 600mA
- Short Circuit Current: 636mA
- Open circuit voltage: 5.85V
- Size: 120 * 180 * 3mm
- Wafer material:ImportEfficient monocrystalline silicon
- Output: USB2.0 female head
- The scope of products: direct exposure to the sun can be a place, working temperature: -20 85
- Light intensity: 1000W / M2,25 ,, M1.5
- Packaging Materials: UV, anti-yellowing, transparent epoxy glue EVA
- Floor material: resistance to deformation, high-strength PCB board
Note: The product has no regulator diode or charging circuit, cannot charge mobile phone, mp3 and so on directly. Only as an immediate power source that can be used to test, motors and mobile power and other power storage devices.
Power calculation:
Here is an example, 100W output power, working 6 hours per day, tell us about calculation methods:
1. First,should calculate (including the inverter loss) watts consumed every day: If the inverterConversion efficiency is 90%, when the output power of 100W, then the actual needs of the output power should be 100W / 90% = 90W; if the use of 5 hours per day, the power consumption of 90W * 5 = 450Wh.
2. Calculate the solar panel: Press effective dailyDuration of sunshine6 hours calculation, taking into account the charging efficiency and charging loss, solar panel power output should be 555Wh / 6h / 70% = 130W. 70 per cent of the charging process, the actual use of the solar panel power.
Our 3W / 5V solar panels at midday clear sky conditions, up to 600 mA output current, to be filled with a 1500 mAh battery, need four hours or so. The formula is: 1500 * 1.6 (loss ratio) / 600 = 4 hours.
Package included:
- 1 x Solar Panel
