[Shotimes] glue and amperage for LED tail lamps

[van Oss]

(I hope) I am nearing the end of my 3-way sequential LED project.  I figured 
out how to cram three 4'' round LED arrays into Gen2 tail housings.  You can 
check out an 18 KB photo at  http://tinyurl.com/3vhln.  Two questions:

1.  Soon I'll need to glue the red lenses back onto the housings.  What sort 
of glue or adhesive caulk shall I use?  The factory stuff softened when 
warm, and looked like it might be hot-melt glue.  Is there anything else 
that might work to both bond and seal the parts?

2.  The LED arrays I'm using are Grote, model G4002 I think.  Each array is 
supposed to consume 1/2 an amp when braking or turning.  How does 1.5 amps 
per side compare with the stock pair of 3157 bulbs?  I am wondering if the 
stock circuitry can handle this load or if I'm going to need to provide 
something beefier to power these lamps.

TIA for any advice.

VO