Common points for not work:

Firstly , please ensure LED Strip is accurately linked . Controller and led strip conjunction half arrow to arrow— LED can activate while you plug energy
Secondly , please ensure led strip in in flashing mode
then you’ll be able to add machine into Tuya APP
easy methods to make led strip flashing ? — please plug and unplug and plug the facility adapter for 3 instances . then look ahead to a couple of seconds . led strip will come to flashing mode

Specification:

Type: Flexible RGB LED Neon gentle strip
Voltage:DC12V
Waterproof: YES
Strips Width: 6MM*15MM
LED Type: SMD 3535
Strip Length: 1M / 2M / 3M / 4M / 5M
Light Color: RGB
Control by:Buletooth Control or Tuya Wifi Control
Remote Controler:CR2025（Not embrace battery)

Feature:

【Control】The strip gentle might be managed by way of WiFi connection. The WIFI controller might be managed wirelessly even if you’re not at dwelling, with out distance limitation. Controlled by voice LED lights, and used with Alexa and Google Assistant by means of easy voice management. Just use "activate/off the sunshine", "change the colour to blue", "dim/brighten the sunshine" to regulate.

【Widely used】Color-changing neon lights might be higher used as ornamental lights for courtyards, homes, RVs, kitchens, bedrooms, bars, workplace buildings, events, taking part in pc video games, out of doors, and so forth., on Halloween, Christmas and Valentine's Day Create a romantic ambiance.