Usage Tips:Light beam angle: 20-30 IP: 22 only for interior lighting They can be recessed in shelves, furniture, plasterboard, cover panels and so on. Set of 4 round spots in aluminum and matt protective glass - 230 V - With transformer When switched on, the spotlights will illuminate the environment with warm (3000 Kelvin) and intense (300 lumens) light Outside diameter : 38mm. Installation depth: 29mm appearance design of Gaorui mini projector, high-end and versatile black and white, gold and silver are combined with LD chips , premium materials are suitable for many occasions, classic and versatile, matching your design style Suitable for home/commercial lighting such as background walls , entrances, counter display cases, etc. Color temperature specifications and applicable places for reference Display display index 80, high color rendering index, efficient heat dissipation, long service life Warm self-lighting is used in places that require warm colors Neutral light is used in places that require temperature neutral in color Positive white light is suitable for places that require refreshing tones, such as interior decoration, clothing stores and hypermarkets with unconventional light colors. Neutral light products require high brightness, such as home decoration, store decoration, etc., and are widely used. Personalized, less application. Decoration, large shopping malls, etc., widely used.