Rovmaker OpenRov 20W Underwater Light for RC AUV | Hobbywater
Customization Service
We are the OEM ODM manufacturer. For bulk orders and custom solutions, please contact us at official@hobbywater.com
When will I get my order?
We prioritize fast order processing. For in-stock items, orders placed before 4:00 PM (Beijing Time) will be shipped the same day. Standard orders typically ship within one week, while customized orders require approximately 15-30 business days for production and delivery. Delivery times may vary under special circumstances.
Shipping Methods
We ship to most countries worldwide. However, please ensure compliance with your local import regulations.
- For the USA: We offer tax-inclusive shipping options. Expedited orders are shipped via DHL, UPS, or FedEx. Note: DHL does not allow undervaluation.
- For other countries: Tax-inclusive shipping is available upon request. Otherwise, orders will be shipped via 4PX by default.
For specific shipping requirements, please contact us in advance.
Working Mode:
The yellow and red wires are connected to the power supply at the same time and the light will come on at maximum brightness. Forced mode switching etc. After the way is lit, the internal program takes 3-4s to judge the brightness. When the temperature of the lamp exceeds 80 degrees Celsius, it will automatically reduce the brightness to protect the LED lamp.When the temperature drops, it will resume.
Power:20W
Voltage: DC 12-28V
Water depth: 300m at most
brightness: 2200 lumens
PWM range: 1100 - 1900
Working temperature: -10~80 degree
LED lifetime: 5000h
How to connect the cable
RED to V+ 12~28V
Black to GND
Yellow to PWM
Cable length: around 100cm
Light Holder
This product is widely used in underwater light.The circular base has a more general installation method and has the function of rotating after installation. It can be rotated manually and locked by screws to fix the position.


Product Feature
- It can be manually rotated and locked
- Black aluminum alloy surface oxidation
- Matching stainless steel screws
Simple ESC Matching Guide
Voltage (V):
ESC voltage = Battery voltage (e.g., 3S LiPo = 12V, 6S LiPo = 24V).
Current (A):
ESC current ≥ Motor max current + 20-30% safety margin.
Quick Examples:12V, 20A motor → 30A ESC (or higher).
Rule: ESC can handle higher amps than needed, but never lower. Always check motor specs!