Here is the aluminum die-casting  Modular Design  Adjustable Angles It's LED light testing on before installation. 
it can be adjust tbe angle by each single unit with 30°/60°/90°/120° Beam angle, and 360 degrees rotating 
all adjust all units in the same angle in same. 
Like this, such as a 3 meter and 6 meters high bay LED light. it will be  remote control for ON/OFF, or electricity control cabinet just like a  street  lighting  fix up all the functions into  the control cabinet for whole lights. 
for those industry LED lights, not same as the indoor lighting, It will be non standard items,It will be according to your requirements for you Application space Like a workshop ,basement ,store, playground And parking lot. If you have a such as the LED light for your place, plese send us your requirments for our luminaire data sheet For your reference and for our best offer.