LiteUpBlock is a small Hong Kong-based company that makes LEGO compatible light bricks like liteupbar, liteuplamp, lego MOC parts, construction toy with light and much....
https://www.liteupblock.com/

LiteUpBlock.com company offers LED lighting kit, LEGO light brick and accessaries, Lego MOC parts and construction toy in Hong Kong at reliable prices for your....
https://www.ebay.co.uk/sch/brick_booster/m.html?_nkw&_armrs=1&_ipg&_from&_clu=2&_fcid=77&_localstpos&_stpos&gbr=1