Arent you friendlly.I've spent a week researching this....think about it b efore you go accusing me of being a liar AGAIN Par value is the percentage of light that reaches the target after disspation via heat and such is it not? Now take a mh bulb and compare how far the light goes to a headlight on a car better yet look directlly into each because your begining to annoy me
Through my research I've found what I wanted to know and believe I've provide enough proof that this is a viable technology,if thats not good enough for you thats not my problem try google,then come apologise when your done