BlitzWolf A70 9W 900lm CCT Bulb (BW-LT29)
BlitzWolf A70 9W 900lm

Available from:


Install method:
USB to Serial

GPIO #Component
GPIO00 None
GPIO01 None
GPIO02 None
GPIO03 None
GPIO04 None
GPIO05 None
GPIO09 None
GPIO10 None
GPIO12 None
GPIO14 None
GPIO16 None
Configuration (old format, will be converted to new template when applied)

Use SetOption92 1 after applying template.

Serial Flashing

Tuya-Convert did not work on this bulb due to new hardware. To flash this bulb you’ll need to solder only two wires but they will be tricky.

Pop the diffuser dome by using a plastic prying tool to circle around the base which will loosen the glue and make the dome easy to remove.

Lift up the top PCB, it is not screwed on or soldered to the base. The connection is made with the 8 pin head visible.

RX, TX and IO0 are nicely labelled on the wifi board and have small pinholes that can fit breadboard jumper cables.

Now comes the tricky part: to get VCC and GND youneed to solder to the wifi board header joints. There is GND and VCC on the green PCB that connect to the 8 pin header but they don’t power the ESP8266 properly. There’s probably some voltage regulation in between but I didn’t examine it further.

All broken out ESP8266 pins are labelled on the other side. In my image VCC is the orange wire and GND the black one.