So, just received my pack of 12v double Led platform lamps and about to wire them to my 12v bus, contacted the company and asked whether they are fitted with resistors or not, they couldn't say?? So, when connected to a 9v batt they light but not very bright so assumed they have resistors fitted? (as they would have blown?) wired them up to the 12v bus, nice and bright but they are getting quite 'warm' so now assume they need resistors? ohms law not my strong point!
If I wire them (6) in parallel any idea what resistors I should use to get the brightness but not the heat.
Cheers