Model Watts Life Notes 4419 35 300 Trapezoidal Beam I've tried this. VERY Wide Dispersion and fair taxi light on dark fields. Good Anti-Collision at night ONLY. 1600cp 4413 35 300 Wide Dispersion Light 1100cp. Hard to find. 80w 20h 4412 35 300 Clear Fog Light 40wide,7high 11000cp. 4435 30 100 Super Narrow Spot. 60000cp Shielded Filament 4436 35 300 Tight Spotlight 60,000cp 4531 40 400 20deg wide, 5deg high 30,000cp 4537 100 25 Aviation Landing Light, 200000cp 4537-2 100 25 Emergency Vehicle Version ($$ more) H7612 37 450 40wide 7high, 15,000cp H7635 50 100 160,000cp Halogen Spotlight H7609 50 400 SuperWide Beam 80wide, 20high 2,200cp H7619 50 400 Wide Pattern, 6600cp Hard to find. H7680/ 80 100 Newest Halogen, 6wide 6high, 275,000cp HIR1 H7680X 80 300 Long-Life, 6wide 6high 230,000cp HIR1 4522 250 25 Std Landing light, 12wide 10high 290,000cp Note: 4522 has a C2 type filiment which looks like an inverted U with two parallel coils versus the C6 type which has the filament stretched across the holders. This might make the C6 types unsuitable for nose mounting due to excessive vibration. little slack in the mi I "know a guy" who's been experimenting with 4419 on the right side and kept 4422 on the left. The 4419 makes for a good taxi light and night time recog light. GE 4419 dispersion is very, very wide and wont ruin your night vision at all "That guy's" next experiement will be tests with 4531 and 4436 on the right, and then finally Putting a HIR7680 in the right. Also, there is some misunderstanding on the HIR bulbs. The IR portion refers to what is REFLECTED back INTO the filiment of the bulb, not what's emmited. Also note that the 7680HIR bulb has a 6' pattern where the 4522 has 12'