On masterled.es you can buy 150W LED transformers, for indoor use. Several lamps at once.
IP25 150W LED transformer for indoor use
Transformador a prueba de agua 220v a 12v DC 24v DC Fuente de alimentación Controlador LED 24W 36W 45W 60W 80W 100W 150W 200W 250W 300W 350W 400W - AliExpress
Trasformador 12VDC 12,5A -150W
12V 150W regulable de transformadores de Cinta LED - China Los transformadores LED LED regulable, Cinta
E341271 Recognized for North American, marked with Backward RU (not round UL mark), certified as a power supply component, Powerful 150W power supply,
LED Driver 12 Volt 150 Watts 110V to 12V Power Supply Waterproof IP67 Transformer 150W 12VDC LED Power Supply AC to DC Converter with 3 Prong Plug
Convertidor Dcac 12v a 110v 220v AC 150w Inversor Boost Board Transformador Power-dontodent Kuyhfg Sin marca
TRANSFORMADOR METAL LED 36W 12V 220V - BricoBlue
Bulk LTF LED 150watt no load electronic AC driver transformer 12VAC ELV dimmable TA150WA12LED
Transformador Led Ultrafina 48w 12vdc_110v-220v/ac Ip21 [cp-48-12_220 Ip21] con Ofertas en Carrefour
Piscina impermeável IP67 12V/24V 150W 220V CA a 12V DC Transformador LED com marcação RoHS - China Transformador de 150W, 220V 12V transformador LED