
Product Information
Description
APC 300W 12V R40 Flood Pool Light Bulb, Medium Base (APC12300M)
300 W R40 flood bulb for 12 V pool lights
APC APC12300M is a 12 V, 300 W R40 reflector flood bulb with a standard E26 medium screw base. It is an aftermarket replacement for Pentair 79101900 (AmerLite, SwimQuip) and Hayward SPX0541Z1 (StarLite, AstroLite) in 12 V pool lights.
| Brand | APC |
|---|---|
| Part Number | APC12300M |
| Part Type | Replacement pool light bulb (aftermarket) |
| Lamp Type | Incandescent reflector flood |
| Wattage | 300 W |
| Voltage | 12 V |
| Base | E26 medium screw base |
| Bulb Shape | R40 reflector |
| Lamp Code | 300R/FL |
| Face | Frosted (white) |
| Overall Length | About 6-3/8 in |
| Diameter | 5 in |
| Fixture Voltage | 12 V low-voltage pool lights only |
| Replaces (Pentair) | 79101900 |
| Replaces (Hayward) | SPX0541Z1 |
| Sold As | 1 bulb |
- Pentair AmerLite 12 V pool lights (bulb 79101900)
- Sta-Rite SwimQuip 12 V, 300 W lights (bulb 79101900)
- Hayward StarLite SP0540, SP0541, SP0542 and SP0543 lights (bulb SPX0541Z1)
- Hayward AstroLite SP0580 series 12 V lights (bulb SPX0541Z1)
Will this work in a 120 V pool light?
No. This is a 12 V lamp for lights fed by a 12 V transformer. A 120 V light needs a 120 V bulb, so check your old bulb or the light's label first.
Can I run the light out of the water to test it?
Only for a second or two. A 300 W incandescent pool light relies on the water for cooling and overheats quickly in open air.
Additional Info
| Category | Parts Pool Parts Pool Light Parts |
| SKU | PST-APC12300M |
| MPN | APC12300M |
| Replaces | 79101900, SPX0541Z1 |
| Manufacturer | APC |
| Weight | 0.4 lb |